setDeltaT.C

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License
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#include "setDeltaT.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
void Foam::setDeltaT(Time& runTime, const PtrList<solver>& solvers)
{
    if
    (
        runTime.timeIndex() == 0
     && runTime.controlDict().lookupOrDefault("adjustTimeStep", false)
    )
    {
        bool transient = false;
        scalar deltaT = vGreat;
 
        forAll(solvers, i)
        {
            if (solvers[i].transient())
            {
                transient = true;
                deltaT = min(deltaT, solvers[i].maxDeltaT());
            }
        }
 
        if (transient)
        {
            deltaT = min(deltaT, runTime.functionObjects().maxDeltaT());
        }
 
        if (transient && deltaT < rootVGreat)
        {
            runTime.setDeltaT(min(runTime.deltaTValue(), deltaT));
        }
    }
}
 
 
void Foam::adjustDeltaT(Time& runTime, const PtrList<solver>& solvers)
{
    // Update the time-step limited by the solvers maxDeltaT
    if (runTime.controlDict().lookupOrDefault("adjustTimeStep", false))
    {
        bool transient = false;
        scalar deltaT = vGreat;
 
        forAll(solvers, i)
        {
            if (solvers[i].transient())
            {
                transient = true;
                deltaT = min(deltaT, solvers[i].maxDeltaT());
            }
        }
 
        if (transient)
        {
            deltaT = min(deltaT, runTime.functionObjects().maxDeltaT());
        }
 
        if (transient && deltaT < rootVGreat)
        {
            runTime.setDeltaT
            (
                min
                (
                    solver::deltaTFactor*runTime.deltaTValue(),
                    deltaT
                )
            );
            Info<< "deltaT = " <<  runTime.deltaTValue() << endl;
        }
    }
}
 
 
// ************************************************************************* //