ohms_law.h

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#pragma once
 
// WarpM includes
#include "apps/wmapplication.h"
 
namespace wxm
{
namespace apps
{
namespace hallmhd
{
namespace hyperresistivity
{
 
class OhmsLaw : public WmApplication
{
public:
    OhmsLaw();
 
    ~OhmsLaw() override;
 
    void setup(const WxCryptSet& wxc) override;
 
    const std::vector<int>& getInputVariableIndexes(int flag) const override
    {
        return _inputVariables;
    }
 
    const std::vector<int>& getOutputVariableIndexes(int flag) const override
    {
        return _outputVariables;
    }
 
    real internal_flux(const real* q,
                       const real* aux,
                       const solverVariables_t* pSV,
                       std::vector<std::vector<real>>& internalFlux) const override;
 
    real numerical_flux(const real* q_l,
                        const real* q_r,
                        const real* aux_l,
                        const real* aux_r,
                        const solverVariables_t* pFV,
                        real* numericalFlux) const override;
 
protected:
    real _hyperresistive_nu;
    std::vector<int> _inputVariables;
    std::vector<int> _outputVariables;
 
    std::string _coordinate_system;
    int _radial_index;
    int _ir, _ith, _iz; // r, theta, and z indices
 
    // flux tensor is used to calculate left and right fluxes for numerical flux
    // mutable because this will continuously be changed upon call, but functions are
    // labled const.
    // this is just a helper vector so this behavior should be justified.
    mutable std::vector<std::vector<real>> _flux_tensor;
};
 
} // namespace hyperresistivity
} // namespace hallmhd
} // namespace apps
} // namespace wxm