gridfacevariables.hh

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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
//
// SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder
// SPDX-License-Identifier: GPL-3.0-or-later
//
#ifndef DUMUX_DISCRETIZATION_STAGGERED_GRID_FACEVARIABLES_HH
#define DUMUX_DISCRETIZATION_STAGGERED_GRID_FACEVARIABLES_HH
 
// make the local view function available whenever we use this class
#include <dumux/discretization/localview.hh>
#include <dumux/discretization/staggered/elementfacevariables.hh>
#include <dumux/discretization/staggered/facesolution.hh>
 
namespace Dumux {
 
template<class P, class FV>
struct StaggeredDefaultGridFaceVariablesTraits
{
    template<class GridFaceVariables, bool enableCache>
    using LocalView = StaggeredElementFaceVariables<GridFaceVariables, enableCache>;
 
    using FaceVariables = FV;
    using Problem = P;
};
 
template<class Problem,
         class FaceVariables,
         bool cachingEnabled = false,
         class Traits = StaggeredDefaultGridFaceVariablesTraits<Problem, FaceVariables> >
class StaggeredGridFaceVariables;
 
template<class P, class FV, class Traits>
class StaggeredGridFaceVariables<P, FV, /*cachingEnabled*/true, Traits>
{
    using ThisType = StaggeredGridFaceVariables<P, FV, /*cachingEnabled*/true, Traits>;
    using Problem = typename Traits::Problem;
 
public:
    static constexpr bool cachingEnabled = true;
 
    using LocalView = typename Traits::template LocalView<ThisType, cachingEnabled>;
 
    using FaceVariables = typename Traits::FaceVariables;
 
    StaggeredGridFaceVariables(const Problem& problem) : problemPtr_(&problem) {}
 
    template<class GridGeometry, class SolutionVector>
    void update(const GridGeometry& gridGeometry, const SolutionVector& sol)
    {
        faceVariables_.resize(gridGeometry.numScvf());
        auto fvGeometry = localView(gridGeometry);
        for (auto&& element : elements(gridGeometry.gridView()))
        {
            fvGeometry.bindElement(element);
 
            for (auto&& scvf : scvfs(fvGeometry))
            {
                const auto faceSol = StaggeredFaceSolution(scvf, sol, gridGeometry);
                faceVariables_[scvf.index()].update(faceSol, problem(), element, fvGeometry, scvf);
            }
        }
    }
 
    const FaceVariables& faceVars(const std::size_t facetIdx) const
    { return faceVariables_[facetIdx]; }
 
    FaceVariables& faceVars(const std::size_t facetIdx)
    { return faceVariables_[facetIdx]; }
 
    const Problem& problem() const
    { return *problemPtr_; }
 
private:
    const Problem* problemPtr_;
    std::vector<FaceVariables> faceVariables_;
};
 
template<class P, class FV, class Traits>
class StaggeredGridFaceVariables<P, FV, /*cachingEnabled*/false, Traits>
{
    using ThisType = StaggeredGridFaceVariables<P, FV, /*cachingEnabled*/false, Traits>;
    using Problem = typename Traits::Problem;
 
public:
    static constexpr bool cachingEnabled = false;
 
    using LocalView = typename Traits::template LocalView<ThisType, cachingEnabled>;
 
    using FaceVariables = typename Traits::FaceVariables;
 
    StaggeredGridFaceVariables(const Problem& problem) : problemPtr_(&problem) {}
 
    template<class GridGeometry, class SolutionVector>
    void update(const GridGeometry& gridGeometry, const SolutionVector& sol) {}
 
    const Problem& problem() const
    { return *problemPtr_; }
 
private:
    const Problem* problemPtr_;
};
 
} // end namespace Dumux
 
#endif