freeflow/rans/iofields.hh

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#ifndef DUMUX_RANS_IO_FIELDS_HH
#define DUMUX_RANS_IO_FIELDS_HH
 
#include <dumux/freeflow/navierstokes/iofields.hh>
 
namespace Dumux {
 
struct RANSIOFields
{
    template <class OutputModule>
    static void initOutputModule(OutputModule& out)
    {
        NavierStokesIOFields::initOutputModule(out);
 
        static const bool isFlatWallBounded = getParamFromGroup<bool>(out.paramGroup(), "RANS.IsFlatWallBounded", false);
        static const bool writeFlatWallBoundedFields = getParamFromGroup<bool>(out.paramGroup(), "RANS.WriteFlatWallBoundedFields", isFlatWallBounded);
 
        static constexpr auto dim = decltype(std::declval<typename OutputModule::VolumeVariables>().ccVelocityVector())::dimension;
 
        out.addVolumeVariable([](const auto& v){ return v.ccVelocityVector()[0] / v.velocityMaximum()[0]; }, "v_x/v_x,max");
 
        // velocityGradients is a tensor, gradient of each velocity component is added here.
        out.addVolumeVariable([](const auto& v){ return v.velocityGradients()[0]; }, "dv_x/ds_");
        if (dim > 1)
            out.addVolumeVariable([](const auto& v){ return v.velocityGradients()[1]; }, "dv_y/ds_");
        if (dim > 2)
            out.addVolumeVariable([](const auto& v){ return v.velocityGradients()[2]; }, "dv_z/ds_");
        out.addVolumeVariable([](const auto& v){ return v.pressure() - 1e5; }, "p_rel");
        out.addVolumeVariable([](const auto& v){ return v.viscosity() / v.density(); }, "nu");
        out.addVolumeVariable([](const auto& v){ return v.kinematicEddyViscosity(); }, "nu_t");
        out.addVolumeVariable([](const auto& v){ return v.wallDistance(); }, "l_w");
        if (writeFlatWallBoundedFields)
        {
            out.addVolumeVariable([](const auto& v){ return v.yPlus(); }, "y^+");
            out.addVolumeVariable([](const auto& v){ return v.uPlus(); }, "u^+");
        }
    }
 
    template <class ModelTraits, class FluidSystem>
    static std::string primaryVariableName(int pvIdx = 0, int state = 0)
    {
        return NavierStokesIOFields::template primaryVariableName<ModelTraits, FluidSystem>(pvIdx, state);
    }
};
 
} // end namespace Dumux
 
#endif