applications/solvers/solidMechanics/elasticNonLinULSolidFoam/elasticNonLinULSolidFoam.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
   6      \\/     M anipulation  |
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of OpenFOAM.
  10
  11     OpenFOAM is free software; you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation; either version 2 of the License, or (at your
  14     option) any later version.
  15
  16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with OpenFOAM; if not, write to the Free Software Foundation,
  23     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  24
  25 Application
  26     elasticNonLinULSolidFoam
  27
  28 Description
  29     Finite volume structural solver employing a incremental strain updated
  30     Lagrangian approach.
  31
  32     Valid for small strains, finite displacements and finite rotations.
  33
  34 Author
  35     Philip Cardiff UCD
  36
  37 \*---------------------------------------------------------------------------*/
  38
  39 #include "fvCFD.H"
  40 #include "constitutiveModel.H"
  41 #include "solidInterface.H"
  42 #include "volPointInterpolation.H"
  43 #include "pointPatchInterpolation.H"
  44 #include "primitivePatchInterpolation.H"
  45 #include "pointFields.H"
  46 #include "twoDPointCorrector.H"
  47 #include "leastSquaresVolPointInterpolation.H"
  48 #include "processorFvPatchFields.H"
  49 #include "transformGeometricField.H"
  50 #include "symmetryPolyPatch.H"
  51
  52 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  53
  54 int main(int argc, char *argv[])
  55 {
  56 # include "setRootCase.H"
  57 # include "createTime.H"
  58 # include "createMesh.H"
  59 # include "createFields.H"
  60 # include "readDivDSigmaExpMethod.H"
  61 # include "readDivDSigmaLargeStrainExpMethod.H"
  62 # include "readMoveMeshMethod.H"
  63 # include "createSolidInterfaceNonLin.H"
  64 # include "findGlobalFaceZones.H"
  65
  66 //* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  67
  68   Info << "\nStarting time loop\n" << endl;
  69
  70   for (runTime++; !runTime.end(); runTime++)
  71     {
  72       Info<< "Time = " << runTime.timeName() << nl << endl;
  73
  74 #     include "readSolidMechanicsControls.H"
  75
  76       int iCorr = 0;
  77       lduMatrix::solverPerformance solverPerf;
  78       scalar initialResidual = 1.0;
  79       scalar relativeResidual = 1.0;
  80       lduMatrix::debug = 0;
  81
  82       do
  83       {
  84           DU.storePrevIter();
  85
  86 #         include "calculateDivDSigmaExp.H"
  87 #         include "calculateDivDSigmaLargeStrainExp.H"
  88
  89           //- Updated lagrangian momentum equation
  90           fvVectorMatrix DUEqn
  91               (
  92                   fvm::d2dt2(rho,DU)
  93                   ==
  94                   fvm::laplacian(2*muf + lambdaf, DU, "laplacian(DDU,DU)")
  95                   + divDSigmaExp
  96                   + divDSigmaLargeStrainExp
  97                   );
  98
  99           if (solidInterfaceCorr)
 100           {
 101               solidInterfacePtr->correct(DUEqn);
 102           }
 103
 104           solverPerf = DUEqn.solve();
 105
 106           if (iCorr == 0)
 107           {
 108               initialResidual = solverPerf.initialResidual();
 109           }
 110
 111           DU.relax();
 112
 113           gradDU = fvc::grad(DU);
 114
 115 #         include "calculateDEpsilonDSigma.H"
 116 #         include "calculateRelativeResidual.H"
 117
 118           Info << "\tTime " << runTime.value()
 119                << ", Corrector " << iCorr
 120                << ", Solving for " << DU.name()
 121                << " using " << solverPerf.solverName()
 122                << ", res = " << solverPerf.initialResidual()
 123                << ", rel res = " << relativeResidual
 124                << ", inner iters " << solverPerf.nIterations() << endl;
 125       }
 126       while
 127         (
 128             //solverPerf.initialResidual() > convergenceTolerance
 129             relativeResidual > convergenceTolerance
 130             && ++iCorr < nCorr
 131             );
 132
 133       Info << nl << "Time " << runTime.value() << ", Solving for " << DU.name()
 134            << ", Initial residual = " << initialResidual
 135            << ", Final residual = " << solverPerf.initialResidual()
 136            << ", No outer iterations " << iCorr << endl;
 137
 138 #     include "moveMesh.H"
 139 #     include "rotateFields.H"
 140 #     include "writeFields.H"
 141
 142       Info<< nl << "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
 143           << "  ClockTime = " << runTime.elapsedClockTime() << " s"
 144           << endl;
 145     }
 146
 147   Info<< "End\n" << endl;
 148
 149   return(0);
 150 }
 151
 152 // ************************************************************************* //