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annotate +sbp/D4Lonely.m @ 328:31d6698c1edf feature/beams

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Clean up and fixing of new operators
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 28 Sep 2016 12:39:12 +0200
parents d24869abc7cd
children 25b01643e438
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
324
c0cbffcf6513 Created new operator class for lonely D4 operators. Removed some output parameters of implementations.
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1 classdef D4Lonely < sbp.OpSet
252
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2 properties
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3 m % Number of grid points.
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4 h % Step size
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5 x % grid
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6 H % Norm matrix
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7 HI % H^-1
328
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8 D4 % SBP operator for fourth derivative
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9 M4 % Norm matrix, fourth derivative
324
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10 e_l, e_r % Left and right boundary operator
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11 d1_l, d1_r % Left and right boundary first derivative
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12 d2_l, d2_r % Left and right boundary second derivative
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13 d3_l, d3_r % Left and right boundary third derivative
263
21a180acbd49 Renamed standard class to D2Standard etc, Rewrote class properties.
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14 borrowing % Struct with borrowing limits for different norm matrices
252
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15 end
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16
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17 methods
324
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18 function obj = D4Lonely(m, lim, order, opt)
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19 default_arg('opt', '')
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20
264
8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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21 x_l = lim{1};
8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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22 x_r = lim{2};
8a625c5a3633 Changed input parameter L (domain length) to lim (cell with domain boundaries)
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23 L = x_r-x_l;
263
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24 obj.h = L/(m-1);
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25 obj.x = linspace(x_l, x_r,m)';
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26
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27 if order == 2
312
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28 [H, HI, D1, D2, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
310
ffa5d557942b Moved operator implementations and fixed some naming.
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29 sbp.implementations.d4_variable_2(m, obj.h);
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30 obj.borrowing.N.S2 = 1.2500;
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31 obj.borrowing.N.S3 = 0.4000;
308
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32
252
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33 elseif order == 4
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34 switch opt
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35 case 'min_boundary_points'
324
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36 [H, HI, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
325
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37 sbp.implementations.d4_lonely_4_min_boundary_points(m, obj.h);
327
d24869abc7cd Calculated borrowin for D4Lonely.
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38 obj.borrowing.N.S2 = 0.6244;
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39 obj.borrowing.N.S3 = 1.3961;
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40 otherwise
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41 [H, HI, D1, D2, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
310
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42 sbp.implementations.d4_variable_4(m, obj.h);
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43 obj.borrowing.N.S2 = 0.5055;
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44 obj.borrowing.N.S3 = 0.9290;
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45 end
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46
252
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47 elseif order == 6
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48 switch opt
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49 case '2'
324
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50 [H, HI, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
325
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51 sbp.implementations.d4_lonely_6_2(m, obj.h);
327
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52 obj.borrowing.N.S2 = 0.2931;
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53 obj.borrowing.N.S3 = 0.0807;
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54 case '3'
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55 [H, HI, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
325
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56 sbp.implementations.d4_lonely_6_3(m, obj.h);
327
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57 obj.borrowing.N.S2 = 0.2842;
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58 obj.borrowing.N.S3 = 0.0709;
307
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59 case 'min_boundary_points'
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60 [H, HI, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
325
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61 sbp.implementations.d4_lonely_6_min_boundary_points(m, obj.h);
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62 obj.borrowing.N.S2 = 0.3569;
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63 obj.borrowing.N.S3 = 0.1908;
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64 otherwise
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65 [H, HI, D1, D2, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
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66 sbp.implementations.d4_variable_6(m, obj.h);
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67 obj.borrowing.N.S2 = 0.3259;
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68 obj.borrowing.N.S3 = 0.1580;
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69 end
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70
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71 elseif order == 8
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72 switch opt
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73 case 'min_boundary_points'
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74 [H, HI, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
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75 sbp.implementations.d4_lonely_8_min_boundary_points(m, obj.h);
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76 obj.borrowing.N.S2 = 0.2804;
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77 obj.borrowing.N.S3 = 0.0740;
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78 otherwise
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79 [H, HI, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = ...
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80 sbp.implementations.d4_lonely_8_higher_boundary_order(m, obj.h);
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81 obj.borrowing.N.S2 = 0.2475;
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82 obj.borrowing.N.S3 = 0.0401;
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83 end
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84 else
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85 error('Invalid operator order.');
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86 end
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87
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88 obj.m = m;
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89
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90 obj.H = H;
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91 obj.HI = HI;
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92 obj.D4 = D4;
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93 obj.M4 = M4;
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94 obj.e_l = e_l;
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95 obj.e_r = e_r;
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96 obj.d1_l = d1_l;
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97 obj.d1_r = d1_r;
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98 obj.d2_l = d2_l;
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99 obj.d2_r = d2_r;
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100 obj.d3_l = d3_l;
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101 obj.d3_r = d3_r;
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102 end
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103 end
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104 end