foam-extend4.1-coherent-io/applications/solvers/solidMechanics/elasticNonLinULSolidFoam/elasticNonLinULSolidFoam.C

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

    OpenFOAM is free software; you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by the
    Free Software Foundation; either version 2 of the License, or (at your
    option) any later version.

    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.

    You should have received a copy of the GNU General Public License
    along with OpenFOAM; if not, write to the Free Software Foundation,
    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Application
    elasticNonLinULSolidFoam

Description
    Finite volume structural solver employing a incremental strain updated
    Lagrangian approach.

    Valid for small strains, finite displacements and finite rotations.

Author
    Philip Cardiff UCD

\*---------------------------------------------------------------------------*/

#include "fvCFD.H"
#include "constitutiveModel.H"
#include "solidInterface.H"
#include "volPointInterpolation.H"
#include "pointPatchInterpolation.H"
#include "primitivePatchInterpolation.H"
#include "pointFields.H"
#include "twoDPointCorrector.H"
#include "leastSquaresVolPointInterpolation.H"
#include "processorFvPatchFields.H"
#include "transformGeometricField.H"
#include "symmetryPolyPatch.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{
# include "setRootCase.H"
# include "createTime.H"
# include "createMesh.H"
# include "createFields.H"
# include "readDivDSigmaExpMethod.H"
# include "readDivDSigmaLargeStrainExpMethod.H"
# include "readMoveMeshMethod.H"
# include "createSolidInterfaceNonLin.H"
# include "findGlobalFaceZones.H"

//* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

  Info << "\nStarting time loop\n" << endl;

  for (runTime++; !runTime.end(); runTime++)
    {
      Info<< "Time = " << runTime.timeName() << nl << endl;

#     include "readSolidMechanicsControls.H"

      int iCorr = 0;
      lduMatrix::solverPerformance solverPerf;
      scalar initialResidual = 1.0;
      scalar relativeResidual = 1.0;
      lduMatrix::debug = 0;

      do
      {
          DU.storePrevIter();

#         include "calculateDivDSigmaExp.H"
#         include "calculateDivDSigmaLargeStrainExp.H"

          //- Updated lagrangian momentum equation
          fvVectorMatrix DUEqn
              (
                  fvm::d2dt2(rho,DU)
                  ==
                  fvm::laplacian(2*muf + lambdaf, DU, "laplacian(DDU,DU)")
                  + divDSigmaExp
                  + divDSigmaLargeStrainExp
                  );

          if (solidInterfaceCorr)
          {
              solidInterfacePtr->correct(DUEqn);
          }

          solverPerf = DUEqn.solve();

          if (iCorr == 0)
          {
              initialResidual = solverPerf.initialResidual();
          }

          DU.relax();

          gradDU = fvc::grad(DU);

#         include "calculateDEpsilonDSigma.H"
#         include "calculateRelativeResidual.H"

          Info << "\tTime " << runTime.value()
               << ", Corrector " << iCorr
               << ", Solving for " << DU.name()
               << " using " << solverPerf.solverName()
               << ", res = " << solverPerf.initialResidual()
               << ", rel res = " << relativeResidual
               << ", inner iters " << solverPerf.nIterations() << endl;
      }
      while
        (
            //solverPerf.initialResidual() > convergenceTolerance
            relativeResidual > convergenceTolerance
            && ++iCorr < nCorr
            );

      Info << nl << "Time " << runTime.value() << ", Solving for " << DU.name()
           << ", Initial residual = " << initialResidual
           << ", Final residual = " << solverPerf.initialResidual()
           << ", No outer iterations " << iCorr << endl;

#     include "moveMesh.H"
#     include "rotateFields.H"
#     include "writeFields.H"

      Info<< nl << "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
          << "  ClockTime = " << runTime.elapsedClockTime() << " s"
          << endl;
    }

  Info<< "End\n" << endl;

  return(0);
}

// ************************************************************************* //