bound.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "bound.H"
#include "volFields.H"
#include "fvc.H"
 
// * * * * * * * * * * * * * * * Global Functions  * * * * * * * * * * * * * //
 
Foam::volScalarField&
Foam::bound(volScalarField& vsf, const dimensionedScalar& lowerBound)
{
    const scalar minVsf = min(vsf).value();
 
    if (minVsf < lowerBound.value())
    {
        Info<< "bounding " << vsf.name()
            << ", min: " << minVsf
            << " max: " << max(vsf).value()
            << " average: " << gAverage(vsf.internalField())
            << endl;
 
        vsf.internalField() = max
        (
            max
            (
                vsf.internalField(),
                fvc::average(max(vsf, lowerBound))().internalField()
              * pos(-vsf.internalField())
            ),
            lowerBound.value()
        );
 
        vsf.boundaryField() = max(vsf.boundaryField(), lowerBound.value());
    }
 
    return vsf;
}
 
 
// ************************************************************************* //