Mercurial > repos > public > sbplib
annotate +scheme/LaplaceCurvilinearNewCorner.m @ 1339:bcdb14b05d03 feature/D2_boundary_opt
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author | Vidar Stiernström <vidar.stiernstrom@it.uu.se> |
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date | Fri, 22 Jul 2022 16:31:18 +0200 |
parents | 27019aca2f17 |
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rev | line source |
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1 classdef LaplaceCurvilinearNewCorner < scheme.Scheme |
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2 properties |
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3 m % Number of points in each direction, possibly a vector |
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4 h % Grid spacing |
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5 dim % Number of spatial dimensions |
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6 |
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7 grid |
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8 |
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9 order % Order of accuracy for the approximation |
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10 |
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11 a,b % Parameters of the operator |
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12 |
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13 |
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14 % Inner products and operators for physical coordinates |
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15 D % Laplace operator |
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16 H, Hi % Inner product |
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17 e_w, e_e, e_s, e_n |
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18 d_w, d_e, d_s, d_n % Normal derivatives at the boundary |
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19 H_w, H_e, H_s, H_n % Boundary inner products |
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20 Dx, Dy % Physical derivatives |
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21 M % Gradient inner product |
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22 |
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23 % Metric coefficients |
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24 J, Ji |
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25 a11, a12, a22 |
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26 K |
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27 x_u |
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28 x_v |
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29 y_u |
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30 y_v |
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31 s_w, s_e, s_s, s_n % Boundary integral scale factors |
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32 |
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33 % Inner product and operators for logical coordinates |
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34 H_u, H_v, H_1D % Norms in the x and y directions |
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35 Hi_u, Hi_v |
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36 Hu,Hv % Kroneckerd norms. 1'*Hx*v corresponds to integration in the x dir. |
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37 Hiu, Hiv |
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38 du_w, dv_w |
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39 du_e, dv_e |
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40 du_s, dv_s |
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41 du_n, dv_n |
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42 |
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43 % Borrowing constants |
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44 theta_M_u, theta_M_v |
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45 theta_R_u, theta_R_v |
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46 theta_H_u, theta_H_v |
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47 |
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48 % Temporary |
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49 lambda |
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50 gamm_u, gamm_v |
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51 |
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52 end |
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53 |
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54 methods |
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55 % Implements a*div(b*grad(u)) as a SBP scheme |
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56 % TODO: Implement proper H, it should be the real physical quadrature, the logic quadrature may be but in a separate variable (H_logic?) |
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57 |
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58 function obj = LaplaceCurvilinearNewCorner(g, order, a, b, opSet) |
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59 default_arg('opSet',@sbp.D2Variable); |
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60 default_arg('a', 1); |
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61 default_arg('b', @(x,y) 0*x + 1); |
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62 |
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63 % assert(isa(g, 'grid.Curvilinear')) |
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64 if isa(a, 'function_handle') |
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65 a = grid.evalOn(g, a); |
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66 end |
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67 a = spdiag(a); |
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68 |
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69 if isa(b, 'function_handle') |
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70 b = grid.evalOn(g, b); |
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71 end |
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72 b = spdiag(b); |
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73 |
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74 % If b is scalar |
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75 if length(b) == 1 |
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76 b = b*speye(g.N(), g.N()); |
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77 end |
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78 |
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79 dim = 2; |
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80 m = g.size(); |
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81 m_u = m(1); |
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82 m_v = m(2); |
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83 m_tot = g.N(); |
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84 |
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85 if isa(g, 'grid.Curvilinear') |
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86 h = g.scaling(); |
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87 h_u = h(1); |
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88 h_v = h(2); |
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89 else |
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90 h_u = 1/(m_u - 1); |
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91 h_v = 1/(m_v - 1); |
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92 h = [h_u, h_v]; |
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93 end |
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94 |
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95 % 1D operators |
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96 ops_u = opSet(m_u, {0, 1}, order); |
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97 ops_v = opSet(m_v, {0, 1}, order); |
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98 |
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99 I_u = speye(m_u); |
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100 I_v = speye(m_v); |
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101 |
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102 D1_u = ops_u.D1; |
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103 D2_u = ops_u.D2; |
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104 H_u = ops_u.H; |
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105 Hi_u = ops_u.HI; |
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106 e_l_u = ops_u.e_l; |
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107 e_r_u = ops_u.e_r; |
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108 d1_l_u = ops_u.d1_l; |
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109 d1_r_u = ops_u.d1_r; |
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110 |
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111 D1_v = ops_v.D1; |
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112 D2_v = ops_v.D2; |
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113 H_v = ops_v.H; |
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114 Hi_v = ops_v.HI; |
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115 e_l_v = ops_v.e_l; |
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116 e_r_v = ops_v.e_r; |
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117 d1_l_v = ops_v.d1_l; |
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118 d1_r_v = ops_v.d1_r; |
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119 |
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120 |
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121 % Logical operators |
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122 Du = kr(D1_u,I_v); |
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123 Dv = kr(I_u,D1_v); |
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124 obj.H_u = H_u; |
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125 obj.H_v = H_v; |
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126 obj.H_1D = {H_u, H_v}; |
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127 |
1055
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128 obj.Hu = kr(H_u,I_v); |
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129 obj.Hv = kr(I_u,H_v); |
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130 obj.Hiu = kr(Hi_u,I_v); |
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131 obj.Hiv = kr(I_u,Hi_v); |
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132 |
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133 e_w = kr(e_l_u,I_v); |
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134 e_e = kr(e_r_u,I_v); |
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135 e_s = kr(I_u,e_l_v); |
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136 e_n = kr(I_u,e_r_v); |
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137 obj.du_w = kr(d1_l_u,I_v); |
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138 obj.dv_w = (e_w'*Dv)'; |
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139 obj.du_e = kr(d1_r_u,I_v); |
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140 obj.dv_e = (e_e'*Dv)'; |
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141 obj.du_s = (e_s'*Du)'; |
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142 obj.dv_s = kr(I_u,d1_l_v); |
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143 obj.du_n = (e_n'*Du)'; |
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144 obj.dv_n = kr(I_u,d1_r_v); |
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145 |
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146 |
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147 % Metric coefficients |
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148 coords = g.points(); |
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149 x = coords(:,1); |
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150 y = coords(:,2); |
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151 |
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152 x_u = Du*x; |
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153 x_v = Dv*x; |
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154 y_u = Du*y; |
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155 y_v = Dv*y; |
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156 |
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157 J = x_u.*y_v - x_v.*y_u; |
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158 a11 = 1./J .* (x_v.^2 + y_v.^2); |
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159 a12 = -1./J .* (x_u.*x_v + y_u.*y_v); |
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160 a22 = 1./J .* (x_u.^2 + y_u.^2); |
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161 lambda = 1/2 * (a11 + a22 - sqrt((a11-a22).^2 + 4*a12.^2)); |
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162 |
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163 K = cell(dim, dim); |
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164 K{1,1} = spdiag(y_v./J); |
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165 K{1,2} = spdiag(-y_u./J); |
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166 K{2,1} = spdiag(-x_v./J); |
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167 K{2,2} = spdiag(x_u./J); |
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168 obj.K = K; |
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169 |
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170 obj.x_u = x_u; |
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171 obj.x_v = x_v; |
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172 obj.y_u = y_u; |
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173 obj.y_v = y_v; |
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174 |
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175 % Assemble full operators |
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176 L_12 = spdiag(a12); |
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177 Duv = Du*b*L_12*Dv; |
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178 Dvu = Dv*b*L_12*Du; |
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179 |
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180 Duu = sparse(m_tot); |
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181 Dvv = sparse(m_tot); |
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182 ind = grid.funcToMatrix(g, 1:m_tot); |
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183 |
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184 for i = 1:m_v |
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185 b_a11 = b*a11; |
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186 D = D2_u(b_a11(ind(:,i))); |
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187 p = ind(:,i); |
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188 Duu(p,p) = D; |
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189 end |
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190 |
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191 for i = 1:m_u |
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192 b_a22 = b*a22; |
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193 D = D2_v(b_a22(ind(i,:))); |
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194 p = ind(i,:); |
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195 Dvv(p,p) = D; |
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196 end |
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197 |
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198 |
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199 % Physical operators |
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200 obj.J = spdiag(J); |
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201 obj.Ji = spdiag(1./J); |
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202 |
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203 obj.D = obj.Ji*a*(Duu + Duv + Dvu + Dvv); |
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204 obj.H = obj.J*kr(H_u,H_v); |
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205 obj.Hi = obj.Ji*kr(Hi_u,Hi_v); |
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206 |
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207 obj.e_w = e_w; |
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208 obj.e_e = e_e; |
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209 obj.e_s = e_s; |
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210 obj.e_n = e_n; |
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211 |
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212 %% normal derivatives |
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213 I_w = ind(1,:); |
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214 I_e = ind(end,:); |
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215 I_s = ind(:,1); |
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216 I_n = ind(:,end); |
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217 |
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218 a11_w = spdiag(a11(I_w)); |
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219 a12_w = spdiag(a12(I_w)); |
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220 a11_e = spdiag(a11(I_e)); |
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221 a12_e = spdiag(a12(I_e)); |
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222 a22_s = spdiag(a22(I_s)); |
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223 a12_s = spdiag(a12(I_s)); |
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224 a22_n = spdiag(a22(I_n)); |
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225 a12_n = spdiag(a12(I_n)); |
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226 |
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227 s_w = sqrt((e_w'*x_v).^2 + (e_w'*y_v).^2); |
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228 s_e = sqrt((e_e'*x_v).^2 + (e_e'*y_v).^2); |
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229 s_s = sqrt((e_s'*x_u).^2 + (e_s'*y_u).^2); |
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230 s_n = sqrt((e_n'*x_u).^2 + (e_n'*y_u).^2); |
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231 |
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232 obj.d_w = -1*(spdiag(1./s_w)*(a11_w*obj.du_w' + a12_w*obj.dv_w'))'; |
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233 obj.d_e = (spdiag(1./s_e)*(a11_e*obj.du_e' + a12_e*obj.dv_e'))'; |
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234 obj.d_s = -1*(spdiag(1./s_s)*(a22_s*obj.dv_s' + a12_s*obj.du_s'))'; |
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235 obj.d_n = (spdiag(1./s_n)*(a22_n*obj.dv_n' + a12_n*obj.du_n'))'; |
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236 |
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237 obj.Dx = spdiag( y_v./J)*Du + spdiag(-y_u./J)*Dv; |
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238 obj.Dy = spdiag(-x_v./J)*Du + spdiag( x_u./J)*Dv; |
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239 |
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240 %% Boundary inner products |
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241 obj.H_w = H_v*spdiag(s_w); |
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242 obj.H_e = H_v*spdiag(s_e); |
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243 obj.H_s = H_u*spdiag(s_s); |
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244 obj.H_n = H_u*spdiag(s_n); |
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245 |
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246 % Misc. |
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247 obj.m = m; |
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248 obj.h = [h_u h_v]; |
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249 obj.order = order; |
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250 obj.grid = g; |
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251 obj.dim = dim; |
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252 |
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253 obj.a = a; |
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254 obj.b = b; |
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255 obj.a11 = a11; |
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256 obj.a12 = a12; |
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257 obj.a22 = a22; |
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258 obj.s_w = spdiag(s_w); |
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259 obj.s_e = spdiag(s_e); |
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260 obj.s_s = spdiag(s_s); |
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261 obj.s_n = spdiag(s_n); |
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262 |
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263 obj.theta_M_u = h_u*ops_u.borrowing.M.d1; |
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264 obj.theta_M_v = h_v*ops_v.borrowing.M.d1; |
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265 |
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266 obj.theta_R_u = h_u*ops_u.borrowing.R.delta_D; |
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267 obj.theta_R_v = h_v*ops_v.borrowing.R.delta_D; |
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268 |
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269 obj.theta_H_u = h_u*ops_u.borrowing.H11; |
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270 obj.theta_H_v = h_v*ops_v.borrowing.H11; |
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271 |
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272 % Temporary |
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273 obj.lambda = lambda; |
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274 obj.gamm_u = h_u*ops_u.borrowing.M.d1; |
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275 obj.gamm_v = h_v*ops_v.borrowing.M.d1; |
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276 end |
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277 |
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278 |
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279 % Closure functions return the opertors applied to the own doamin to close the boundary |
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280 % Penalty functions return the opertors to force the solution. In the case of an interface it returns the operator applied to the other doamin. |
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281 % boundary is a string specifying the boundary e.g. 'l','r' or 'e','w','n','s'. |
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282 % type is a string specifying the type of boundary condition if there are several. |
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283 % data is a function returning the data that should be applied at the boundary. |
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284 % neighbour_scheme is an instance of Scheme that should be interfaced to. |
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285 % neighbour_boundary is a string specifying which boundary to interface to. |
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286 function [closure, penalty] = boundary_condition(obj, boundary, type, parameter) |
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287 default_arg('type','neumann'); |
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288 default_arg('parameter', []); |
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289 |
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290 e = obj.getBoundaryOperator('e', boundary); |
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291 d = obj.getBoundaryOperator('d', boundary); |
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292 H_b = obj.getBoundaryQuadrature(boundary); |
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293 s_b = obj.getBoundaryScaling(boundary); |
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294 [th_H, ~, th_R] = obj.getBoundaryBorrowing(boundary); |
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295 m = obj.getBoundaryNumber(boundary); |
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296 |
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297 K = obj.K; |
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298 J = obj.J; |
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299 Hi = obj.Hi; |
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300 a = obj.a; |
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301 b_b = e'*obj.b*e; |
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302 |
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303 switch type |
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304 % Dirichlet boundary condition |
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305 case {'D','d','dirichlet'} |
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306 tuning = 1.0; |
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307 |
1117
27019aca2f17
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308 sigma = 0*b_b; |
1055
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309 for i = 1:obj.dim |
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310 sigma = sigma + e'*J*K{i,m}*K{i,m}*e; |
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311 end |
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312 sigma = sigma/s_b; |
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313 % tau = tuning*(1/th_R + obj.dim/th_H)*sigma; |
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314 |
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315 tau_R = 1/th_R*sigma; |
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316 |
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317 tau_H = 1/th_H*sigma; |
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318 tau_H(1,1) = obj.dim*tau_H(1,1); |
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319 tau_H(end,end) = obj.dim*tau_H(end,end); |
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320 |
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321 tau = tuning*(tau_R + tau_H); |
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322 |
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323 closure = a*Hi*d*b_b*H_b*e' ... |
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324 -a*Hi*e*tau*b_b*H_b*e'; |
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325 |
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326 penalty = -a*Hi*d*b_b*H_b ... |
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327 +a*Hi*e*tau*b_b*H_b; |
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328 |
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329 |
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330 % Neumann boundary condition. Note that the penalty is for du/dn and not b*du/dn. |
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331 case {'N','n','neumann'} |
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332 tau1 = -1; |
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333 tau2 = 0; |
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334 tau = (tau1*e + tau2*d)*H_b; |
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335 |
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336 closure = a*Hi*tau*b_b*d'; |
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337 penalty = -a*Hi*tau*b_b; |
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338 |
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339 |
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340 % Unknown boundary condition |
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341 otherwise |
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342 error('No such boundary condition: type = %s',type); |
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343 end |
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344 end |
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345 |
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346 % type Struct that specifies the interface coupling. |
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347 % Fields: |
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348 % -- tuning: penalty strength, defaults to 1.2 |
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349 % -- interpolation: type of interpolation, default 'none' |
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350 function [closure, penalty] = interface(obj,boundary,neighbour_scheme,neighbour_boundary,type) |
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351 |
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352 % error('Not implemented') |
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353 |
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354 defaultType.tuning = 1.0; |
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355 defaultType.interpolation = 'none'; |
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356 default_struct('type', defaultType); |
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357 |
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358 switch type.interpolation |
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359 case {'none', ''} |
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360 [closure, penalty] = interfaceStandard(obj,boundary,neighbour_scheme,neighbour_boundary,type); |
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361 case {'op','OP'} |
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362 [closure, penalty] = interfaceNonConforming(obj,boundary,neighbour_scheme,neighbour_boundary,type); |
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363 otherwise |
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364 error('Unknown type of interpolation: %s ', type.interpolation); |
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365 end |
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366 end |
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367 |
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368 function [closure, penalty] = interfaceStandard(obj,boundary,neighbour_scheme,neighbour_boundary,type) |
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369 tuning = type.tuning; |
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370 |
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371 dim = obj.dim; |
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372 % u denotes the solution in the own domain |
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373 % v denotes the solution in the neighbour domain |
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374 u = obj; |
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375 v = neighbour_scheme; |
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376 |
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377 % Boundary operators, u |
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378 e_u = u.getBoundaryOperator('e', boundary); |
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379 d_u = u.getBoundaryOperator('d', boundary); |
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380 gamm_u = u.getBoundaryBorrowing(boundary); |
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381 s_b_u = u.getBoundaryScaling(boundary); |
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382 [th_H_u, ~, th_R_u] = u.getBoundaryBorrowing(boundary); |
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383 m_u = u.getBoundaryNumber(boundary); |
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384 |
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385 % Coefficients, u |
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386 K_u = u.K; |
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387 J_u = u.J; |
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388 b_b_u = e_u'*u.b*e_u; |
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389 |
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390 % Boundary operators, v |
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391 e_v = v.getBoundaryOperator('e', neighbour_boundary); |
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392 d_v = v.getBoundaryOperator('d', neighbour_boundary); |
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393 gamm_v = v.getBoundaryBorrowing(neighbour_boundary); |
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394 s_b_v = v.getBoundaryScaling(neighbour_boundary); |
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395 [th_H_v, ~, th_R_v] = v.getBoundaryBorrowing(neighbour_boundary); |
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396 m_v = v.getBoundaryNumber(neighbour_boundary); |
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397 |
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398 % Coefficients, v |
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399 K_v = v.K; |
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400 J_v = v.J; |
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401 b_b_v = e_v'*v.b*e_v; |
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402 |
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403 %--- Penalty strength tau ------------- |
1117
27019aca2f17
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404 sigma_u = 0*b_b_u; |
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405 sigma_v = 0*b_b_v; |
1055
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406 for i = 1:obj.dim |
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407 sigma_u = sigma_u + e_u'*J_u*K_u{i,m_u}*K_u{i,m_u}*e_u; |
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408 sigma_v = sigma_v + e_v'*J_v*K_v{i,m_v}*K_v{i,m_v}*e_v; |
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409 end |
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410 sigma_u = sigma_u/s_b_u; |
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411 sigma_v = sigma_v/s_b_v; |
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412 |
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413 tau_R_u = 1/th_R_u*sigma_u; |
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414 tau_R_v = 1/th_R_v*sigma_v; |
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415 |
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416 tau_H_u = 1/th_H_u*sigma_u; |
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417 tau_H_u(1,1) = dim*tau_H_u(1,1); |
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418 tau_H_u(end,end) = dim*tau_H_u(end,end); |
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419 |
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420 tau_H_v = 1/th_H_v*sigma_v; |
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421 tau_H_v(1,1) = dim*tau_H_v(1,1); |
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422 tau_H_v(end,end) = dim*tau_H_v(end,end); |
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423 |
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424 tau = 1/4*tuning*(b_b_u*(tau_R_u + tau_H_u) + b_b_v*(tau_R_v + tau_H_v)); |
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425 %-------------------------------------- |
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426 |
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427 % Operators/coefficients that are only required from this side |
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428 Hi = u.Hi; |
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429 H_b = u.getBoundaryQuadrature(boundary); |
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430 a = u.a; |
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431 |
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432 closure = 1/2*a*Hi*d_u*b_b_u*H_b*e_u' ... |
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433 -1/2*a*Hi*e_u*H_b*b_b_u*d_u' ... |
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434 -a*Hi*e_u*tau*H_b*e_u'; |
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435 |
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436 penalty = -1/2*a*Hi*d_u*b_b_u*H_b*e_v' ... |
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437 -1/2*a*Hi*e_u*H_b*b_b_v*d_v' ... |
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438 +a*Hi*e_u*tau*H_b*e_v'; |
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439 end |
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440 |
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441 function [closure, penalty] = interfaceNonConforming(obj,boundary,neighbour_scheme,neighbour_boundary,type) |
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442 |
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443 % TODO: Make this work for curvilinear grids |
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444 warning('LaplaceCurvilinear: Non-conforming grid interpolation only works for Cartesian grids.'); |
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445 warning('LaplaceCurvilinear: Non-conforming interface uses Virtas penalty strength'); |
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446 warning('LaplaceCurvilinear: Non-conforming interface assumes that b is constant'); |
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447 |
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448 % User can request special interpolation operators by specifying type.interpOpSet |
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449 default_field(type, 'interpOpSet', @sbp.InterpOpsOP); |
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450 interpOpSet = type.interpOpSet; |
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451 tuning = type.tuning; |
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452 |
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453 |
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454 % u denotes the solution in the own domain |
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455 % v denotes the solution in the neighbour domain |
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456 e_u = obj.getBoundaryOperator('e', boundary); |
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457 d_u = obj.getBoundaryOperator('d', boundary); |
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458 H_b_u = obj.getBoundaryQuadrature(boundary); |
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459 I_u = obj.getBoundaryIndices(boundary); |
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460 gamm_u = obj.getBoundaryBorrowing(boundary); |
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461 |
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parents:
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|
462 e_v = neighbour_scheme.getBoundaryOperator('e', neighbour_boundary); |
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parents:
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463 d_v = neighbour_scheme.getBoundaryOperator('d', neighbour_boundary); |
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parents:
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|
464 H_b_v = neighbour_scheme.getBoundaryQuadrature(neighbour_boundary); |
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parents:
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465 I_v = neighbour_scheme.getBoundaryIndices(neighbour_boundary); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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466 gamm_v = neighbour_scheme.getBoundaryBorrowing(neighbour_boundary); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
467 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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468 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
469 % Find the number of grid points along the interface |
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Martin Almquist <malmquist@stanford.edu>
parents:
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470 m_u = size(e_u, 2); |
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parents:
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471 m_v = size(e_v, 2); |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
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|
472 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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473 Hi = obj.Hi; |
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parents:
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474 a = obj.a; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
475 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
476 u = obj; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
477 v = neighbour_scheme; |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
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|
478 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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479 b1_u = gamm_u*u.lambda(I_u)./u.a11(I_u).^2; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
480 b2_u = gamm_u*u.lambda(I_u)./u.a22(I_u).^2; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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481 b1_v = gamm_v*v.lambda(I_v)./v.a11(I_v).^2; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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482 b2_v = gamm_v*v.lambda(I_v)./v.a22(I_v).^2; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
483 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
484 tau_u = -1./(4*b1_u) -1./(4*b2_u); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
485 tau_v = -1./(4*b1_v) -1./(4*b2_v); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
486 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
487 tau_u = tuning * spdiag(tau_u); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
488 tau_v = tuning * spdiag(tau_v); |
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parents:
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|
489 beta_u = tau_v; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
490 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
491 % Build interpolation operators |
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Martin Almquist <malmquist@stanford.edu>
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|
492 intOps = interpOpSet(m_u, m_v, obj.order, neighbour_scheme.order); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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493 Iu2v = intOps.Iu2v; |
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parents:
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|
494 Iv2u = intOps.Iv2u; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
495 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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496 closure = a*Hi*e_u*tau_u*H_b_u*e_u' + ... |
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Martin Almquist <malmquist@stanford.edu>
parents:
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497 a*Hi*e_u*H_b_u*Iv2u.bad*beta_u*Iu2v.good*e_u' + ... |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
498 a*1/2*Hi*d_u*H_b_u*e_u' + ... |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
499 -a*1/2*Hi*e_u*H_b_u*d_u'; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
500 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
501 penalty = -a*Hi*e_u*tau_u*H_b_u*Iv2u.good*e_v' + ... |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
502 -a*Hi*e_u*H_b_u*Iv2u.bad*beta_u*e_v' + ... |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
503 -a*1/2*Hi*d_u*H_b_u*Iv2u.good*e_v' + ... |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
504 -a*1/2*Hi*e_u*H_b_u*Iv2u.bad*d_v'; |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
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|
505 |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
506 end |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
507 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
508 % Returns the boundary operator op for the boundary specified by the string boundary. |
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Martin Almquist <malmquist@stanford.edu>
parents:
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509 % op -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
510 % boundary -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
511 function o = getBoundaryOperator(obj, op, boundary) |
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parents:
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512 assertIsMember(op, {'e', 'd'}) |
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parents:
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513 assertIsMember(boundary, {'w', 'e', 's', 'n'}) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
514 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
515 o = obj.([op, '_', boundary]); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
516 end |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
517 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
518 % Returns square boundary quadrature matrix, of dimension |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
519 % corresponding to the number of boundary points |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
520 % |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
521 % boundary -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
522 function H_b = getBoundaryQuadrature(obj, boundary) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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523 assertIsMember(boundary, {'w', 'e', 's', 'n'}) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
524 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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525 H_b = obj.(['H_', boundary]); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
526 end |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
527 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
528 % Returns square boundary quadrature scaling matrix, of dimension |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
529 % corresponding to the number of boundary points |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
530 % |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
531 % boundary -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
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532 function s_b = getBoundaryScaling(obj, boundary) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
533 assertIsMember(boundary, {'w', 'e', 's', 'n'}) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
534 |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
535 s_b = obj.(['s_', boundary]); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
536 end |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
537 |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
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|
538 % Returns the coordinate number corresponding to the boundary |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
539 % |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
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|
540 % boundary -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
541 function m = getBoundaryNumber(obj, boundary) |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
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|
542 assertIsMember(boundary, {'w', 'e', 's', 'n'}) |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
543 |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
544 switch boundary |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
545 case {'w', 'e'} |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
546 m = 1; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
547 case {'s', 'n'} |
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Martin Almquist <malmquist@stanford.edu>
parents:
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548 m = 2; |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
549 end |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
550 end |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
551 |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
552 % Returns the indices of the boundary points in the grid matrix |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
553 % boundary -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
554 function I = getBoundaryIndices(obj, boundary) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
555 ind = grid.funcToMatrix(obj.grid, 1:prod(obj.m)); |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
556 switch boundary |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
557 case 'w' |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
558 I = ind(1,:); |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
559 case 'e' |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
560 I = ind(end,:); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
561 case 's' |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
562 I = ind(:,1)'; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
563 case 'n' |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
564 I = ind(:,end)'; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
565 otherwise |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
566 error('No such boundary: boundary = %s',boundary); |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
567 end |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
568 end |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
569 |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
570 % Returns borrowing constant gamma |
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
571 % boundary -- string |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
572 function [theta_H, theta_M, theta_R] = getBoundaryBorrowing(obj, boundary) |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
573 switch boundary |
b828e589d540
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Martin Almquist <malmquist@stanford.edu>
parents:
diff
changeset
|
574 case {'w','e'} |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
|
575 theta_H = obj.theta_H_u; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
576 theta_M = obj.theta_M_u; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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|
577 theta_R = obj.theta_R_u; |
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Martin Almquist <malmquist@stanford.edu>
parents:
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changeset
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578 case {'s','n'} |
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579 theta_H = obj.theta_H_v; |
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580 theta_M = obj.theta_M_v; |
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581 theta_R = obj.theta_R_v; |
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582 otherwise |
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583 error('No such boundary: boundary = %s',boundary); |
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584 end |
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585 end |
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586 |
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587 function N = size(obj) |
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588 N = prod(obj.m); |
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589 end |
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590 end |
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591 end |