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view +sbp/+implementations/d4_variable_4_min_boundary_points.m @ 312:9230c056a574 feature/beams

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Fixed formatting.
author Jonatan Werpers <jonatan@werpers.com>
date Fri, 23 Sep 2016 19:14:04 +0200
parents ffa5d557942b
children 99005a80b4c2
line wrap: on
line source

function [H, HI, D1, D2, D4, e_l, e_r, M4, d2_l, d2_r, d3_l, d3_r, d1_l, d1_r] = d4_variable_4_min_boundary_points(m,h)
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    %%% 4:de ordn. SBP Finita differens         %%%
    %%% operatorer framtagna av Mark Carpenter  %%%
    %%%                                         %%%
    %%% H           (Normen)                    %%%
    %%% D1=H^(-1)Q  (approx f?rsta derivatan)   %%%
    %%% D2          (approx andra derivatan)    %%%
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    %H?r med endast 4 randpunkter


    Hv = ones(m,1)
    Hv(1:4) = [17/48 59/48 43/48 49/48];
    Hv(m-3:m) = rot90(Hv(1:4),2);
    Hv = h * Hv;
    H = spdiag(Hv,0);
    HI = spdiag(1./Hv,0);


    % Boundary operators
    e_1 = sparse(m,1);
    e_1(1) = 1;
    e_m = rot90(e_1, 2);

    S_U = [-0.11e2/0.6e1 3 -0.3e1/0.2e1 0.1e1/0.3e1;]/h;
    S_1=sparse(1,m);
    S_1(1:4)=S_U;
    S_m = -rot90(S_1, 2);

    S2_U=[2 -5 4 -1;]/h^2;
    S2_1=sparse(1,m);
    S2_1(1:4)=S2_U;
    S2_m = rot90(S2_1, 2);

    S3_U=[-1 3 -3 1;]/h^3;
    S3_1=sparse(1,m);
    S3_1(1:4)=S3_U;
    S3_m = rot90(S3_1, 2);


    Q = (-1/12*diag(ones(m-2,1),2)+8/12*diag(ones(m-1,1),1)-8/12*diag(ones(m-1,1),-1)+1/12*diag(ones(m-2,1),-2));
    Q_U = [
        0 0.59e2/0.96e2 -0.1e1/0.12e2 -0.1e1/0.32e2;
         -0.59e2/0.96e2 0 0.59e2/0.96e2 0;
         0.1e1/0.12e2 -0.59e2/0.96e2 0 0.59e2/0.96e2;
         0.1e1/0.32e2 0 -0.59e2/0.96e2 0;
     ];
    Q(1:4,1:4) = Q_U;
    Q(m-3:m,m-3:m) = flipud( fliplr(-Q_U(1:4,1:4) ) );

    D1 = HI*(Q-1/2*e_1*e_1'+1/2*e_m*e_m') ;

    M_U = [
        0.9e1/0.8e1 -0.59e2/0.48e2 0.1e1/0.12e2 0.1e1/0.48e2;
         -0.59e2/0.48e2 0.59e2/0.24e2 -0.59e2/0.48e2 0;
         0.1e1/0.12e2 -0.59e2/0.48e2 0.55e2/0.24e2 -0.59e2/0.48e2;
         0.1e1/0.48e2 0 -0.59e2/0.48e2 0.59e2/0.24e2;
    ];

    M=-(-1/12*diag(ones(m-2,1),2)+16/12*diag(ones(m-1,1),1)+16/12*diag(ones(m-1,1),-1)-1/12*diag(ones(m-2,1),-2)-30/12*diag(ones(m,1),0));


    M(1:4,1:4)=M_U;

    M(m-3:m,m-3:m)=flipud( fliplr( M_U ) );
    M=M/h;
    M=zeros(m,m);

    for i=4:m-3
    M(i,i-2:i+2)=[-c(i-1)/0.6e1 + c(i-2)/0.8e1 + c(i)/0.8e1 -c(i-2)/0.6e1 - c(i+1)/0.6e1 - c(i-1)/0.2e1 - c(i)/0.2e1 c(i-2)/0.24e2 + 0.5e1/0.6e1 * c(i-1) + 0.5e1/0.6e1 * c(i+1) + c(i+2)/0.24e2 + 0.3e1/0.4e1 * c(i) -c(i-1)/0.6e1 - c(i+2)/0.6e1 - c(i)/0.2e1 - c(i+1)/0.2e1 -c(i+1)/0.6e1 + c(i)/0.8e1 + c(i+2)/0.8e1;];
    end

    M(1:6,1:6) = [
        0.12e2/0.17e2 * c(1) + 0.59e2/0.192e3 * c(2) + 0.27010400129e11/0.345067064608e12 * c(3) + 0.69462376031e11/0.2070402387648e13 * c(4) -0.59e2/0.68e2 * c(1) - 0.6025413881e10/0.21126554976e11 * c(3) - 0.537416663e9/0.7042184992e10 * c(4) 0.2e1/0.17e2 * c(1) - 0.59e2/0.192e3 * c(2) + 0.213318005e9/0.16049630912e11 * c(4) + 0.2083938599e10/0.8024815456e10 * c(3) 0.3e1/0.68e2 * c(1) - 0.1244724001e10/0.21126554976e11 * c(3) + 0.752806667e9/0.21126554976e11 * c(4) 0.49579087e8/0.10149031312e11 * c(3) - 0.49579087e8/0.10149031312e11 * c(4) -c(4)/0.784e3 + c(3)/0.784e3;
        -0.59e2/0.68e2 * c(1) - 0.6025413881e10/0.21126554976e11 * c(3) - 0.537416663e9/0.7042184992e10 * c(4) 0.3481e4/0.3264e4 * c(1) + 0.9258282831623875e16/0.7669235228057664e16 * c(3) + 0.236024329996203e15/0.1278205871342944e16 * c(4) -0.59e2/0.408e3 * c(1) - 0.29294615794607e14/0.29725717938208e14 * c(3) - 0.2944673881023e13/0.29725717938208e14 * c(4) -0.59e2/0.1088e4 * c(1) + 0.260297319232891e15/0.2556411742685888e16 * c(3) - 0.60834186813841e14/0.1278205871342944e16 * c(4) -0.1328188692663e13/0.37594290333616e14 * c(3) + 0.1328188692663e13/0.37594290333616e14 * c(4) -0.8673e4/0.2904112e7 * c(3) + 0.8673e4/0.2904112e7 * c(4);
        0.2e1/0.17e2 * c(1) - 0.59e2/0.192e3 * c(2) + 0.213318005e9/0.16049630912e11 * c(4) + 0.2083938599e10/0.8024815456e10 * c(3) -0.59e2/0.408e3 * c(1) - 0.29294615794607e14/0.29725717938208e14 * c(3) - 0.2944673881023e13/0.29725717938208e14 * c(4) c(1)/0.51e2 + 0.59e2/0.192e3 * c(2) + 0.13777050223300597e17/0.26218083221499456e17 * c(4) + 0.564461e6/0.13384296e8 * c(5) + 0.378288882302546512209e21/0.270764341349677687456e21 * c(3) c(1)/0.136e3 - 0.125059e6/0.743572e6 * c(5) - 0.4836340090442187227e19/0.5525802884687299744e19 * c(3) - 0.17220493277981e14/0.89177153814624e14 * c(4) -0.10532412077335e14/0.42840005263888e14 * c(4) + 0.1613976761032884305e19/0.7963657098519931984e19 * c(3) + 0.564461e6/0.4461432e7 * c(5) -0.960119e6/0.1280713392e10 * c(4) - 0.3391e4/0.6692148e7 * c(5) + 0.33235054191e11/0.26452850508784e14 * c(3);
        0.3e1/0.68e2 * c(1) - 0.1244724001e10/0.21126554976e11 * c(3) + 0.752806667e9/0.21126554976e11 * c(4) -0.59e2/0.1088e4 * c(1) + 0.260297319232891e15/0.2556411742685888e16 * c(3) - 0.60834186813841e14/0.1278205871342944e16 * c(4) c(1)/0.136e3 - 0.125059e6/0.743572e6 * c(5) - 0.4836340090442187227e19/0.5525802884687299744e19 * c(3) - 0.17220493277981e14/0.89177153814624e14 * c(4) 0.3e1/0.1088e4 * c(1) + 0.507284006600757858213e21/0.475219048083107777984e21 * c(3) + 0.1869103e7/0.2230716e7 * c(5) + c(6)/0.24e2 + 0.1950062198436997e16/0.3834617614028832e16 * c(4) -0.4959271814984644613e19/0.20965546238960637264e20 * c(3) - c(6)/0.6e1 - 0.15998714909649e14/0.37594290333616e14 * c(4) - 0.375177e6/0.743572e6 * c(5) -0.368395e6/0.2230716e7 * c(5) + 0.752806667e9/0.539854092016e12 * c(3) + 0.1063649e7/0.8712336e7 * c(4) + c(6)/0.8e1;
        0.49579087e8/0.10149031312e11 * c(3) - 0.49579087e8/0.10149031312e11 * c(4) -0.1328188692663e13/0.37594290333616e14 * c(3) + 0.1328188692663e13/0.37594290333616e14 * c(4) -0.10532412077335e14/0.42840005263888e14 * c(4) + 0.1613976761032884305e19/0.7963657098519931984e19 * c(3) + 0.564461e6/0.4461432e7 * c(5) -0.4959271814984644613e19/0.20965546238960637264e20 * c(3) - c(6)/0.6e1 - 0.15998714909649e14/0.37594290333616e14 * c(4) - 0.375177e6/0.743572e6 * c(5) 0.8386761355510099813e19/0.128413970713633903242e21 * c(3) + 0.2224717261773437e16/0.2763180339520776e16 * c(4) + 0.5e1/0.6e1 * c(6) + c(7)/0.24e2 + 0.280535e6/0.371786e6 * c(5) -0.35039615e8/0.213452232e9 * c(4) - c(7)/0.6e1 - 0.13091810925e11/0.13226425254392e14 * c(3) - 0.1118749e7/0.2230716e7 * c(5) - c(6)/0.2e1;
        -c(4)/0.784e3 + c(3)/0.784e3 -0.8673e4/0.2904112e7 * c(3) + 0.8673e4/0.2904112e7 * c(4) -0.960119e6/0.1280713392e10 * c(4) - 0.3391e4/0.6692148e7 * c(5) + 0.33235054191e11/0.26452850508784e14 * c(3) -0.368395e6/0.2230716e7 * c(5) + 0.752806667e9/0.539854092016e12 * c(3) + 0.1063649e7/0.8712336e7 * c(4) + c(6)/0.8e1 -0.35039615e8/0.213452232e9 * c(4) - c(7)/0.6e1 - 0.13091810925e11/0.13226425254392e14 * c(3) - 0.1118749e7/0.2230716e7 * c(5) - c(6)/0.2e1 0.3290636e7/0.80044587e8 * c(4) + 0.5580181e7/0.6692148e7 * c(5) + 0.5e1/0.6e1 * c(7) + c(8)/0.24e2 + 0.660204843e9/0.13226425254392e14 * c(3) + 0.3e1/0.4e1 * c(6);
    ];

    M(m-5:m,m-5:m) = [
        c(m-7)/0.24e2 + 0.5e1/0.6e1 * c(m-6) + 0.5580181e7/0.6692148e7 * c(m-4) + 0.4887707739997e13/0.119037827289528e15 * c(m-3) + 0.3e1/0.4e1 * c(m-5) + 0.660204843e9/0.13226425254392e14 * c(m-2) + 0.660204843e9/0.13226425254392e14 * c(m-1) -c(m-6)/0.6e1 - 0.1618585929605e13/0.9919818940794e13 * c(m-3) - c(m-5)/0.2e1 - 0.1118749e7/0.2230716e7 * c(m-4) - 0.13091810925e11/0.13226425254392e14 * c(m-2) - 0.13091810925e11/0.13226425254392e14 * c(m-1) -0.368395e6/0.2230716e7 * c(m-4) + c(m-5)/0.8e1 + 0.48866620889e11/0.404890569012e12 * c(m-3) + 0.752806667e9/0.539854092016e12 * c(m-2) + 0.752806667e9/0.539854092016e12 * c(m-1) -0.3391e4/0.6692148e7 * c(m-4) - 0.238797444493e12/0.119037827289528e15 * c(m-3) + 0.33235054191e11/0.26452850508784e14 * c(m-2) + 0.33235054191e11/0.26452850508784e14 * c(m-1) -0.8673e4/0.2904112e7 * c(m-2) - 0.8673e4/0.2904112e7 * c(m-1) + 0.8673e4/0.1452056e7 * c(m-3) -c(m-3)/0.392e3 + c(m-2)/0.784e3 + c(m-1)/0.784e3;
        -c(m-6)/0.6e1 - 0.1618585929605e13/0.9919818940794e13 * c(m-3) - c(m-5)/0.2e1 - 0.1118749e7/0.2230716e7 * c(m-4) - 0.13091810925e11/0.13226425254392e14 * c(m-2) - 0.13091810925e11/0.13226425254392e14 * c(m-1) c(m-6)/0.24e2 + 0.5e1/0.6e1 * c(m-5) + 0.3896014498639e13/0.4959909470397e13 * c(m-3) + 0.8386761355510099813e19/0.128413970713633903242e21 * c(m-2) + 0.280535e6/0.371786e6 * c(m-4) + 0.3360696339136261875e19/0.171218627618178537656e21 * c(m-1) -c(m-5)/0.6e1 - 0.4959271814984644613e19/0.20965546238960637264e20 * c(m-2) - 0.375177e6/0.743572e6 * c(m-4) - 0.13425842714e11/0.33740880751e11 * c(m-3) - 0.193247108773400725e18/0.6988515412986879088e19 * c(m-1) -0.365281640980e12/0.1653303156799e13 * c(m-3) + 0.564461e6/0.4461432e7 * c(m-4) + 0.1613976761032884305e19/0.7963657098519931984e19 * c(m-2) - 0.198407225513315475e18/0.7963657098519931984e19 * c(m-1) -0.1328188692663e13/0.37594290333616e14 * c(m-2) + 0.2226377963775e13/0.37594290333616e14 * c(m-1) - 0.8673e4/0.363014e6 * c(m-3) c(m-3)/0.49e2 + 0.49579087e8/0.10149031312e11 * c(m-2) - 0.256702175e9/0.10149031312e11 * c(m-1);
        -0.368395e6/0.2230716e7 * c(m-4) + c(m-5)/0.8e1 + 0.48866620889e11/0.404890569012e12 * c(m-3) + 0.752806667e9/0.539854092016e12 * c(m-2) + 0.752806667e9/0.539854092016e12 * c(m-1) -c(m-5)/0.6e1 - 0.4959271814984644613e19/0.20965546238960637264e20 * c(m-2) - 0.375177e6/0.743572e6 * c(m-4) - 0.13425842714e11/0.33740880751e11 * c(m-3) - 0.193247108773400725e18/0.6988515412986879088e19 * c(m-1) c(m-5)/0.24e2 + 0.1869103e7/0.2230716e7 * c(m-4) + 0.507284006600757858213e21/0.475219048083107777984e21 * c(m-2) + 0.3e1/0.1088e4 * c(m) + 0.31688435395e11/0.67481761502e11 * c(m-3) + 0.27769176016102795561e20/0.712828572124661666976e21 * c(m-1) -0.125059e6/0.743572e6 * c(m-4) + c(m)/0.136e3 - 0.23099342648e11/0.101222642253e12 * c(m-3) - 0.4836340090442187227e19/0.5525802884687299744e19 * c(m-2) + 0.193950157930938693e18/0.5525802884687299744e19 * c(m-1) 0.260297319232891e15/0.2556411742685888e16 * c(m-2) - 0.59e2/0.1088e4 * c(m) - 0.106641839640553e15/0.1278205871342944e16 * c(m-1) + 0.26019e5/0.726028e6 * c(m-3) -0.1244724001e10/0.21126554976e11 * c(m-2) + 0.3e1/0.68e2 * c(m) + 0.752806667e9/0.21126554976e11 * c(m-1);
        -0.3391e4/0.6692148e7 * c(m-4) - 0.238797444493e12/0.119037827289528e15 * c(m-3) + 0.33235054191e11/0.26452850508784e14 * c(m-2) + 0.33235054191e11/0.26452850508784e14 * c(m-1) -0.365281640980e12/0.1653303156799e13 * c(m-3) + 0.564461e6/0.4461432e7 * c(m-4) + 0.1613976761032884305e19/0.7963657098519931984e19 * c(m-2) - 0.198407225513315475e18/0.7963657098519931984e19 * c(m-1) -0.125059e6/0.743572e6 * c(m-4) + c(m)/0.136e3 - 0.23099342648e11/0.101222642253e12 * c(m-3) - 0.4836340090442187227e19/0.5525802884687299744e19 * c(m-2) + 0.193950157930938693e18/0.5525802884687299744e19 * c(m-1) 0.564461e6/0.13384296e8 * c(m-4) + 0.470299699916357e15/0.952302618316224e15 * c(m-3) + 0.550597048646198778781e21/0.1624586048098066124736e22 * c(m-1) + c(m)/0.51e2 + 0.378288882302546512209e21/0.270764341349677687456e21 * c(m-2) -0.59e2/0.408e3 * c(m) - 0.29294615794607e14/0.29725717938208e14 * c(m-2) - 0.2234477713167e13/0.29725717938208e14 * c(m-1) - 0.8673e4/0.363014e6 * c(m-3) -0.59e2/0.3136e4 * c(m-3) - 0.13249937023e11/0.48148892736e11 * c(m-1) + 0.2e1/0.17e2 * c(m) + 0.2083938599e10/0.8024815456e10 * c(m-2);
        -0.8673e4/0.2904112e7 * c(m-2) - 0.8673e4/0.2904112e7 * c(m-1) + 0.8673e4/0.1452056e7 * c(m-3) -0.1328188692663e13/0.37594290333616e14 * c(m-2) + 0.2226377963775e13/0.37594290333616e14 * c(m-1) - 0.8673e4/0.363014e6 * c(m-3) 0.260297319232891e15/0.2556411742685888e16 * c(m-2) - 0.59e2/0.1088e4 * c(m) - 0.106641839640553e15/0.1278205871342944e16 * c(m-1) + 0.26019e5/0.726028e6 * c(m-3) -0.59e2/0.408e3 * c(m) - 0.29294615794607e14/0.29725717938208e14 * c(m-2) - 0.2234477713167e13/0.29725717938208e14 * c(m-1) - 0.8673e4/0.363014e6 * c(m-3) 0.9258282831623875e16/0.7669235228057664e16 * c(m-2) + 0.3481e4/0.3264e4 * c(m) + 0.228389721191751e15/0.1278205871342944e16 * c(m-1) + 0.8673e4/0.1452056e7 * c(m-3) -0.6025413881e10/0.21126554976e11 * c(m-2) - 0.59e2/0.68e2 * c(m) - 0.537416663e9/0.7042184992e10 * c(m-1);
        -c(m-3)/0.392e3 + c(m-2)/0.784e3 + c(m-1)/0.784e3 c(m-3)/0.49e2 + 0.49579087e8/0.10149031312e11 * c(m-2) - 0.256702175e9/0.10149031312e11 * c(m-1) -0.1244724001e10/0.21126554976e11 * c(m-2) + 0.3e1/0.68e2 * c(m) + 0.752806667e9/0.21126554976e11 * c(m-1) -0.59e2/0.3136e4 * c(m-3) - 0.13249937023e11/0.48148892736e11 * c(m-1) + 0.2e1/0.17e2 * c(m) + 0.2083938599e10/0.8024815456e10 * c(m-2) -0.6025413881e10/0.21126554976e11 * c(m-2) - 0.59e2/0.68e2 * c(m) - 0.537416663e9/0.7042184992e10 * c(m-1) 0.3e1/0.3136e4 * c(m-3) + 0.27010400129e11/0.345067064608e12 * c(m-2) + 0.234566387291e12/0.690134129216e12 * c(m-1) + 0.12e2/0.17e2 * c(m);
    ];

    M = M/h;

    D2 = HI*(-M-c(1)*e_1*S_1+c(m)*e_m*S_m);
    m3 = -1/6;
    m2 = 2;
    m1 = -13/2;
    m0 = 28/3;
    M4 = m3*(diag(ones(m-3,1),3)+diag(ones(m-3,1),-3))+m2*(diag(ones(m-2,1),2)+diag(ones(m-2,1),-2))+m1*(diag(ones(m-1,1),1)+diag(ones(m-1,1),-1))+m0*diag(ones(m,1),0);


    M4_U=[
        0.8e1/0.3e1 -0.37e2/0.6e1 0.13e2/0.3e1 -0.5e1/0.6e1;
        -0.37e2/0.6e1 0.47e2/0.3e1 -13 0.11e2/0.3e1;
        0.13e2/0.3e1 -13 0.44e2/0.3e1 -0.47e2/0.6e1;
        -0.5e1/0.6e1 0.11e2/0.3e1 -0.47e2/0.6e1 0.29e2/0.3e1;
    ];
    M4(1:4,1:4)=M4_U;

    M4(m-3:m,m-3:m) = flipud( fliplr( M4_U ) );
    M4 = M4/h^3;

    D4 = HI*(M4-e_1*S3_1+e_m*S3_m  + S_1'*S2_1-S_m'*S2_m);
end