mpfa/computetransmissibility.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:
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#ifndef DUMUX_DISCRETIZATION_CC_MPFA_COMPUTE_TRANSMISSIBILITY_HH
#define DUMUX_DISCRETIZATION_CC_MPFA_COMPUTE_TRANSMISSIBILITY_HH
 
#include <dune/common/typetraits.hh>
#include <dune/common/fvector.hh>
 
#include <dumux/common/math.hh>
 
namespace Dumux
{
 
template<class Scv, class Scvf, class Tensor>
Dune::FieldVector< typename Tensor::field_type, Scv::myDimension >
computeMpfaTransmissibility(const Scv& scv,
                            const Scvf& scvf,
                            const Tensor& T,
                            typename Scv::ctype extrusionFactor)
{
    Dune::FieldVector< typename Tensor::field_type, Scv::myDimension > wijk;
    for (unsigned int dir = 0; dir < Scv::myDimension; ++dir)
        wijk[dir] = vtmv(scvf.unitOuterNormal(), T, scv.nu(dir));
 
    wijk *= scvf.area()*extrusionFactor;
    wijk /= scv.detX();
 
    return wijk;
}
 
template< class Scv,
          class Scvf,
          class Tensor,
          std::enable_if_t< Dune::IsNumber<Tensor>::value, int > = 1 >
Dune::FieldVector<Tensor, Scv::myDimension>
computeMpfaTransmissibility(const Scv& scv,
                            const Scvf& scvf,
                            Tensor t,
                            typename Scv::ctype extrusionFactor)
{
    Dune::FieldVector<Tensor, Scv::myDimension> wijk;
    for (unsigned int dir = 0; dir < Scv::myDimension; ++dir)
        wijk[dir] = vtmv(scvf.unitOuterNormal(), t, scv.nu(dir));
 
    wijk *= scvf.area()*extrusionFactor;
    wijk /= scv.detX();
 
    return wijk;
}
 
} // end namespace Dumux
 
#endif