tabulatedAccelerationSourceTemplates.C

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    Copyright (C) 2015 OpenFOAM Foundation
    Copyright (C) 2020 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.

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#include "tabulatedAccelerationSource.H"
#include "fvMesh.H"
#include "fvMatrices.H"
#include "uniformDimensionedFields.H"

// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //

template<class RhoFieldType>
void Foam::fv::tabulatedAccelerationSource::addSup
(
    const RhoFieldType& rho,
    fvMatrix<vector>& eqn,
    const label fieldi
)
{
    Vector<vector> acceleration(motion_.acceleration());

    // If gravitational force is present combine with the linear acceleration
    if (mesh_.time().foundObject<uniformDimensionedVectorField>("g"))
    {
        auto& g =
            mesh_.time().lookupObjectRef<uniformDimensionedVectorField>("g");

        const auto& hRef =
            mesh_.lookupObject<uniformDimensionedScalarField>("hRef");

        g = g0_ - dimensionedVector("a", dimAcceleration, acceleration.x());

        dimensionedScalar ghRef
        (
            mag(g.value()) > SMALL
          ? g & (cmptMag(g.value())/mag(g.value()))*hRef
          : dimensionedScalar("ghRef", g.dimensions()*dimLength, 0)
        );

        mesh_.lookupObjectRef<volScalarField>("gh")
            = (g & mesh_.C()) - ghRef;

        mesh_.lookupObjectRef<surfaceScalarField>("ghf")
            = (g & mesh_.Cf()) - ghRef;
    }
    // ... otherwise include explicitly in the momentum equation
    else
    {
        eqn -= rho*dimensionedVector("a", dimAcceleration, acceleration.x());
    }

    dimensionedVector Omega
    (
        "Omega",
        dimensionSet(0, 0, -1, 0, 0),
        acceleration.y()
    );

    dimensionedVector dOmegaDT
    (
        "dOmegaDT",
        dimensionSet(0, 0, -2, 0, 0),
        acceleration.z()
    );

    eqn -=
    (
        rho*(2*Omega ^ eqn.psi())         // Coriolis force
      + rho*(Omega ^ (Omega ^ mesh_.C())) // Centrifugal force
      + rho*(dOmegaDT ^ mesh_.C())        // Angular tabulatedAcceleration force
    );
}


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