velocityComponentLaplacianFvMotionSolver.C

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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     \\/     M anipulation  |
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2016 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    for more details.
 
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#include "velocityComponentLaplacianFvMotionSolver.H"
#include "motionInterpolation.H"
#include "motionDiffusivity.H"
#include "fvmLaplacian.H"
#include "addToRunTimeSelectionTable.H"
#include "fvOptions.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    defineTypeNameAndDebug(velocityComponentLaplacianFvMotionSolver, 0);
 
    addToRunTimeSelectionTable
    (
        motionSolver,
        velocityComponentLaplacianFvMotionSolver,
        dictionary
    );
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::velocityComponentLaplacianFvMotionSolver::
velocityComponentLaplacianFvMotionSolver
(
    const polyMesh& mesh,
    const IOdictionary& dict
)
:
    componentVelocityMotionSolver(mesh, dict, typeName),
    fvMotionSolver(mesh),
    cellMotionU_
    (
        IOobject
        (
            "cellMotionU" + cmptName_,
            mesh.time().timeName(),
            mesh,
            IOobject::READ_IF_PRESENT,
            IOobject::AUTO_WRITE
        ),
        fvMesh_,
        dimensionedScalar(pointMotionU_.dimensions(), Zero),
        cellMotionBoundaryTypes<scalar>(pointMotionU_.boundaryField())
    ),
    interpolationPtr_
    (
        coeffDict().found("interpolation")
      ? motionInterpolation::New(fvMesh_, coeffDict().lookup("interpolation"))
      : motionInterpolation::New(fvMesh_)
    ),
    diffusivityPtr_
    (
        motionDiffusivity::New(fvMesh_, coeffDict().lookup("diffusivity"))
    )
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::velocityComponentLaplacianFvMotionSolver::
~velocityComponentLaplacianFvMotionSolver()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::pointField>
Foam::velocityComponentLaplacianFvMotionSolver::curPoints() const
{
    interpolationPtr_->interpolate
    (
        cellMotionU_,
        pointMotionU_
    );
 
    auto tcurPoints = tmp<pointField>::New(fvMesh_.points());
 
    tcurPoints.ref().replace
    (
        cmpt_,
        tcurPoints().component(cmpt_)
      + fvMesh_.time().deltaTValue()*pointMotionU_.primitiveField()
    );
 
    twoDCorrectPoints(tcurPoints.ref());
 
    return tcurPoints;
}
 
 
void Foam::velocityComponentLaplacianFvMotionSolver::solve()
{
    // The points have moved so before interpolation update
    // the fvMotionSolver accordingly
    movePoints(fvMesh_.points());
 
    diffusivityPtr_->correct();
    pointMotionU_.boundaryFieldRef().updateCoeffs();
 
    fv::options& fvOptions(fv::options::New(fvMesh_));
 
    // We explicitly do NOT want to interpolate the motion inbetween
    // different regions so bypass all the matrix manipulation.
    fvScalarMatrix TEqn
    (
        fvm::laplacian
        (
            dimensionedScalar("viscosity", dimViscosity, 1.0)
           *diffusivityPtr_->operator()(),
            cellMotionU_,
            "laplacian(diffusivity,cellMotionU)"
        )
     ==
        fvOptions(cellMotionU_)
    );
 
    fvOptions.constrain(TEqn);
    TEqn.solveSegregatedOrCoupled();
    fvOptions.correct(cellMotionU_);
}
 
 
void Foam::velocityComponentLaplacianFvMotionSolver::updateMesh
(
    const mapPolyMesh& mpm
)
{
    componentVelocityMotionSolver::updateMesh(mpm);
 
    // Update diffusivity. Note two stage to make sure old one is de-registered
    // before creating/registering new one.
    diffusivityPtr_.reset(nullptr);
    diffusivityPtr_ = motionDiffusivity::New
    (
        fvMesh_,
        coeffDict().lookup("diffusivity")
    );
}
 
 
// ************************************************************************* //