porositydeformation.hh

Go to the documentation of this file.

// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*****************************************************************************
 *   See the file COPYING for full copying permissions.                      *
 *                                                                           *
 *   This program 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.                                     *
 *                                                                           *
 *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.   *
 *****************************************************************************/
#ifndef DUMUX_MATERIAL_POROSITY_DEFORMATION_HH
#define DUMUX_MATERIAL_POROSITY_DEFORMATION_HH
 
#include <dumux/discretization/evalgradients.hh>
 
namespace Dumux {
 
template<class Scalar>
class PorosityDeformation
{
public:
    template< class FVGridGeom, class ElemSol >
    static Scalar evaluatePorosity(const FVGridGeom& gridGeometry,
                                   const typename FVGridGeom::GridView::template Codim<0>::Entity& element,
                                   const typename FVGridGeom::GridView::template Codim<0>::Entity::Geometry::GlobalCoordinate& globalPos,
                                   const ElemSol& elemSol,
                                   Scalar refPoro,
                                   Scalar minPoro = 0.0,
                                   Scalar maxPoro = 1.0)
    {
        // compute divergence of displacement at the given position
        Scalar divU = 0.0;
        const auto gradU = evalGradients(element, element.geometry(), gridGeometry, elemSol, globalPos);
        for (int dir = 0; dir < FVGridGeom::GridView::dimension; ++dir)
            divU += gradU[dir][dir];
 
        using std::min;
        using std::max;
        return min( maxPoro, max(minPoro, (refPoro+divU)/(1.0+divU)) );
    }
 
    template< class FVGridGeom, class ElemSol >
    static Scalar evaluatePorosity(const FVGridGeom& gridGeometry,
                                   const typename FVGridGeom::GridView::template Codim<0>::Entity& element,
                                   const typename FVGridGeom::SubControlVolume& scv,
                                   const ElemSol& elemSol,
                                   Scalar refPoro,
                                   Scalar minPoro = 0.0)
    {
        // evaluate the porosity at the scv center
        return evaluatePorosity(gridGeometry, element, scv.center(), elemSol, refPoro, minPoro);
    }
};
 
} // namespace Dumux
 
#endif