linearDisplacement_pointMeshMover.C

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#include "linearDisplacement_pointMeshMover.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace pointMeshMovers
{
    defineTypeNameAndDebug(linearDisplacement, 0);
 
    addToRunTimeSelectionTable
    (
        pointMeshMover,
        linearDisplacement,
        dictionary
    );
}
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::pointMeshMovers::linearDisplacement::linearDisplacement
(
    const polyMesh& mesh,
    const dictionary& dict
)
:
    displacementPoints0(mesh, dict, typeName),
    axis_(normalised(dict.lookup<vector>("axis", dimless))),
    xFixed_(dict.lookup<scalar>("xFixed", dimLength)),
    xMoving_(dict.lookup<scalar>("xMoving", dimLength)),
    displacement_
    (
        Function1<scalar>::New
        (
            "displacement",
            mesh.time().userUnits(),
            dimLength,
            dict
        )
    )
{}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::pointMeshMovers::linearDisplacement::~linearDisplacement()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::pointField>
Foam::pointMeshMovers::linearDisplacement::newPoints()
{
    tmp<pointField> tcurPoints(new pointField(points0()));
    pointField& curPoints = tcurPoints.ref();
 
    const scalar displacement = displacement_->value(poly().time().value());
 
    forAll(curPoints, i)
    {
        const scalar lambda =
            (xFixed_ - (axis_ & curPoints[i]))/(xFixed_ - xMoving_);
 
        if (lambda > 1)
        {
            curPoints[i] += axis_*displacement;
        }
        else if (lambda > 0)
        {
            curPoints[i] += axis_*lambda*displacement;
        }
    }
 
    return tcurPoints;
}
 
 
void Foam::pointMeshMovers::linearDisplacement::mapMesh(const polyMeshMap& map)
{
    FatalErrorInFunction
        << "Mesh-to-mesh mapping in not implemented for displacement solvers"
        << nl
        << "    velocity based motion solvers are preferable for cases in which"
           " the mesh is reset periodically avoiding accumulation of error."
        << exit(FatalError);
}
 
 
// ************************************************************************* //