1p/advectiveflux.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_FREEFLOW_NAVIERSTOKES_MASS_1P_ADVECTIVE_FLUX_HH
#define DUMUX_FREEFLOW_NAVIERSTOKES_MASS_1P_ADVECTIVE_FLUX_HH
 
namespace Dumux {
 
#ifndef DOXYGEN
// forward declare
struct NavierStokesMassOnePModelTraits;
 
template<class IsothermalTraits>
struct NavierStokesEnergyModelTraits;
 
template<class ModelTraits, class T = ModelTraits>
struct AdvectiveFlux;
#endif
 
template<class T>
struct AdvectiveFlux<NavierStokesMassOnePModelTraits, T>
{
    template<class NumEqVector, class UpwindFunction>
    static void addAdvectiveFlux(NumEqVector& flux,
                                 const UpwindFunction& upwind)
    {
        using ModelTraits = T;
 
        // get equation index
        const auto eqIdx = ModelTraits::Indices::conti0EqIdx;
        flux[eqIdx] += upwind([](const auto& volVars) { return volVars.density(); });
    }
};
 
// use the same mass flux for the non-isothermal model (heat fluxes are added separately)
template<>
struct AdvectiveFlux<NavierStokesEnergyModelTraits<NavierStokesMassOnePModelTraits>>
: public AdvectiveFlux<NavierStokesMassOnePModelTraits>
{};
 
} // end namespace Dumux
 
#endif