fluidSolver.C

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License
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#include "fluidSolver.H"
#include "surfaceFields.H"
#include "fvcDiv.H"
#include "fvcSurfaceIntegrate.H"
#include "fvcVolumeIntegrate.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
namespace solvers
{
    defineTypeNameAndDebug(fluidSolver, 0);
}
}
 
 
// * * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * //
 
bool Foam::solvers::fluidSolver::dependenciesModified() const
{
    return runTime.controlDict().modified() || mesh.solution().modified();
}
 
 
bool Foam::solvers::fluidSolver::read()
{
    solver::read();
 
    maxCo =
        runTime.controlDict().lookupOrDefault<scalar>("maxCo", vGreat);
 
    maxDeltaT_ =
        runTime.controlDict().found("maxDeltaT")
      ? runTime.controlDict().lookup<scalar>("maxDeltaT", runTime.userUnits())
      : vGreat;
 
    correctPhi = pimple.dict().lookupOrDefault
    (
        "correctPhi",
        mesh.dynamic()
    );
 
    checkMeshCourantNo = pimple.dict().lookupOrDefault
    (
        "checkMeshCourantNo",
        false
    );
 
    return true;
}
 
void Foam::solvers::fluidSolver::meshCourantNo() const
{
    if (checkMeshCourantNo)
    {
        const scalarField sumPhi
        (
            fvc::surfaceSum(mag(mesh.phi()))().primitiveField()
        );
 
        const scalar meshCoNum
        (
            0.5*gMax(sumPhi/mesh.V().primitiveField())*runTime.deltaTValue()
        );
 
        const scalar meanMeshCoNum
        (
            0.5
           *(gSum(sumPhi)/gSum(mesh.V().primitiveField()))
           *runTime.deltaTValue()
        );
 
        Info<< "Mesh Courant Number mean: " << meanMeshCoNum
            << " max: " << meshCoNum << endl;
    }
}
 
 
template<class RhoType>
void Foam::solvers::fluidSolver::correctCoNum
(
    const RhoType& rho,
    const surfaceScalarField& phi
)
{
    const scalarField sumPhi
    (
        fvc::surfaceSum(mag(phi))().primitiveField()/rho.primitiveField()
    );
 
    CoNum_ = 0.5*gMax(sumPhi/mesh.V().primitiveField())*runTime.deltaTValue();
 
    const scalar meanCoNum =
        0.5
       *(gSum(sumPhi)/gSum(mesh.V().primitiveField()))
       *runTime.deltaTValue();
 
    Info<< "Courant Number mean: " << meanCoNum
        << " max: " << CoNum << endl;
}
 
 
void Foam::solvers::fluidSolver::correctCoNum(const surfaceScalarField& phi)
{
    correctCoNum(geometricOneField(), phi);
}
 
 
void Foam::solvers::fluidSolver::correctCoNum
(
    const volScalarField& rho,
    const surfaceScalarField& phi
)
{
    correctCoNum<volScalarField>(rho, phi);
}
 
 
void Foam::solvers::fluidSolver::continuityErrors
(
    const surfaceScalarField& phi
)
{
    const volScalarField contErr(fvc::div(phi));
 
    const scalar sumLocalContErr =
        runTime.deltaTValue()
       *mag(contErr)().weightedAverage(mesh.V()).value();
 
    const scalar globalContErr =
        runTime.deltaTValue()
       *contErr.weightedAverage(mesh.V()).value();
 
    Info<< "time step continuity errors : sum local = " << sumLocalContErr
        << ", global = " << globalContErr;
 
    if (pimple.finalPisoIter() && pimple.finalIter())
    {
        cumulativeContErr += globalContErr;
 
        Info<< ", cumulative = " << cumulativeContErr;
    }
 
    Info<< endl;
}
 
 
void Foam::solvers::fluidSolver::continuityErrors
(
    const volScalarField& rho,
    const volScalarField& thermoRho,
    const surfaceScalarField& phi
)
{
    if (mesh.schemes().steady())
    {
        continuityErrors(phi);
    }
    else
    {
        const dimensionedScalar totalMass = fvc::domainIntegrate(rho);
 
        const scalar sumLocalContErr =
            (fvc::domainIntegrate(mag(rho - thermoRho))/totalMass).value();
 
        const scalar globalContErr =
            (fvc::domainIntegrate(rho - thermoRho)/totalMass).value();
 
        cumulativeContErr += globalContErr;
 
        Info<< "time step continuity errors : sum local = " << sumLocalContErr
            << ", global = " << globalContErr
            << ", cumulative = " << cumulativeContErr
            << endl;
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::solvers::fluidSolver::fluidSolver(fvMesh& mesh)
:
    solver(mesh),
    maxCo(0),
    maxDeltaT_(0),
    cumulativeContErr(0),
    CoNum_(0),
    CoNum(CoNum_)
{
    // Read the controls
    read();
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::solvers::fluidSolver::~fluidSolver()
{}
 
 
// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
Foam::scalar Foam::solvers::fluidSolver::maxDeltaT() const
{
    scalar deltaT = min(fvModels().maxDeltaT(), maxDeltaT_);
 
    if (maxCo < vGreat && CoNum > small)
    {
        deltaT = min(deltaT, maxCo/CoNum*runTime.deltaTValue());
    }
 
    return deltaT;
}
 
 
// ************************************************************************* //