angularOscillatingVelocityPointPatchVectorField.C

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#include "angularOscillatingVelocityPointPatchVectorField.H"
#include "addToRunTimeSelectionTable.H"
#include "Time.H"
#include "polyMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
angularOscillatingVelocityPointPatchVectorField::
angularOscillatingVelocityPointPatchVectorField
(
    const pointPatch& p,
    const DimensionedField<vector, pointMesh>& iF,
    const dictionary& dict
)
:
    fixedValuePointPatchVectorField(p, iF, dict),
    axis_(dict.lookup<vector>("axis", dimless)),
    origin_(dict.lookup<vector>("origin", dimLength)),
    angle0_(dict.lookup<scalar>("angle0", units::radians)),
    amplitude_(dict.lookup<scalar>("amplitude", units::radians)),
    omega_(dict.lookup<scalar>("omega", units::radians/dimTime))
{
    if (!dict.found("value"))
    {
        updateCoeffs();
    }
 
    if (dict.found("p0"))
    {
        p0_ = vectorField("p0", dimLength, dict, p.size());
    }
    else
    {
        p0_ = p.localPoints();
    }
}
 
 
angularOscillatingVelocityPointPatchVectorField::
angularOscillatingVelocityPointPatchVectorField
(
    const angularOscillatingVelocityPointPatchVectorField& ptf,
    const pointPatch& p,
    const DimensionedField<vector, pointMesh>& iF,
    const fieldMapper& mapper
)
:
    fixedValuePointPatchVectorField(ptf, p, iF, mapper),
    axis_(ptf.axis_),
    origin_(ptf.origin_),
    angle0_(ptf.angle0_),
    amplitude_(ptf.amplitude_),
    omega_(ptf.omega_),
    p0_(ptf.p0_)
{}
 
 
angularOscillatingVelocityPointPatchVectorField::
angularOscillatingVelocityPointPatchVectorField
(
    const angularOscillatingVelocityPointPatchVectorField& ptf,
    const DimensionedField<vector, pointMesh>& iF
)
:
    fixedValuePointPatchVectorField(ptf, iF),
    axis_(ptf.axis_),
    origin_(ptf.origin_),
    angle0_(ptf.angle0_),
    amplitude_(ptf.amplitude_),
    omega_(ptf.omega_),
    p0_(ptf.p0_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void angularOscillatingVelocityPointPatchVectorField::map
(
    const pointPatchVectorField& ptf,
    const fieldMapper& mapper
)
{
    const angularOscillatingVelocityPointPatchVectorField& aOVptf =
        refCast<const angularOscillatingVelocityPointPatchVectorField>(ptf);
 
    fixedValuePointPatchVectorField::map(aOVptf, mapper);
 
    mapper(p0_, aOVptf.p0_);
}
 
 
void angularOscillatingVelocityPointPatchVectorField::reset
(
    const pointPatchVectorField& ptf
)
{
    const angularOscillatingVelocityPointPatchVectorField& aOVptf =
        refCast<const angularOscillatingVelocityPointPatchVectorField>(ptf);
 
    fixedValuePointPatchVectorField::reset(aOVptf);
 
    p0_.reset(aOVptf.p0_);
}
 
 
void angularOscillatingVelocityPointPatchVectorField::updateCoeffs()
{
    if (this->updated())
    {
        return;
    }
 
    const polyMesh& mesh = this->internalField().mesh()();
    const Time& t = mesh.time();
    const pointPatch& p = this->patch();
 
    scalar angle = angle0_ + amplitude_*sin(omega_*t.value());
    vector axisHat = axis_/mag(axis_);
    vectorField p0Rel(p0_ - origin_);
 
    vectorField::operator=
    (
        (
            p0_
          + p0Rel*(cos(angle) - 1)
          + (axisHat ^ p0Rel*sin(angle))
          + (axisHat & p0Rel)*(1 - cos(angle))*axisHat
          - p.localPoints()
        )/t.deltaTValue()
    );
 
    fixedValuePointPatchVectorField::updateCoeffs();
}
 
 
void angularOscillatingVelocityPointPatchVectorField::write
(
    Ostream& os
) const
{
    pointPatchVectorField::write(os);
    writeEntry(os, "axis", axis_);
    writeEntry(os, "origin", origin_);
    writeEntry(os, "angle0", angle0_);
    writeEntry(os, "amplitude", amplitude_);
    writeEntry(os, "omega", omega_);
    writeEntry(os, "p0", p0_);
    writeEntry(os, "value", *this);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
makePointPatchTypeField
(
    pointPatchVectorField,
    angularOscillatingVelocityPointPatchVectorField
);
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //