analytical.C

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#include "analytical.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
namespace integrationSchemes
{
    defineTypeNameAndDebug(analytical, 0);
    addToRunTimeSelectionTable(integrationScheme, analytical, word);
}
}

// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::integrationSchemes::analytical::analytical()
{}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::integrationSchemes::analytical::~analytical()
{}


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

Foam::scalar Foam::integrationSchemes::analytical::dtEff
(
    const scalar dt,
    const scalar Beta
) const
{
    return
        mag(Beta*dt) > small
      ? (1 - exp(- Beta*dt))/Beta
      : dt;
}


Foam::scalar Foam::integrationSchemes::analytical::sumDtEff
(
    const scalar dt,
    const scalar Beta
) const
{
    return
        mag(Beta*dt) > small
      ? dt/Beta - (1 - exp(- Beta*dt))/sqr(Beta)
      : sqr(dt);
}


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