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#ifndef WARPX_GALILEAN_ALGORITHM_H_
#define WARPX_GALILEAN_ALGORITHM_H_
#include "SpectralBaseAlgorithm.H"
#if WARPX_USE_PSATD
/* \brief Class that updates the field in spectral space
* and stores the coefficients of the corresponding update equation.
*/
class GalileanAlgorithm : public SpectralBaseAlgorithm
{
public:
GalileanAlgorithm (const SpectralKSpace& spectral_kspace,
const amrex::DistributionMapping& dm,
const int norder_x, const int norder_y,
const int norder_z, const bool nodal,
const amrex::Array<amrex::Real,3>& v_galilean,
const amrex::Real dt,
const bool update_with_rho);
// Redefine update equation from base class
virtual void pushSpectralFields (SpectralFieldData& f) const override final;
virtual int getRequiredNumberOfFields () const override final {
return SpectralFieldIndex::n_fields;
};
void InitializeSpectralCoefficients (const SpectralKSpace& spectral_kspace,
const amrex::DistributionMapping& dm,
const amrex::Real dt);
/**
* \brief Virtual function for current correction in Fourier space
* (<a href="https://doi.org/10.1016/j.jcp.2013.03.010"> Vay et al, 2013</a>).
* This function overrides the virtual function \c CurrentCorrection in the
* base class \c SpectralBaseAlgorithm and cannot be overridden by further
* derived classes.
*
* \param[in,out] field_data All fields in Fourier space
* \param[in,out] current Array of unique pointers to \c MultiFab storing
* the three components of the current density
* \param[in] rho Unique pointer to \c MultiFab storing the charge density
*/
virtual void CurrentCorrection (SpectralFieldData& field_data,
std::array<std::unique_ptr<amrex::MultiFab>,3>& current,
const std::unique_ptr<amrex::MultiFab>& rho) override final;
/**
* \brief Virtual function for Vay current deposition in Fourier space
* (<a href="https://doi.org/10.1016/j.jcp.2013.03.010"> Vay et al, 2013</a>).
* This function overrides the virtual function \c VayDeposition in the
* base class \c SpectralBaseAlgorithm and cannot be overridden by further
* derived classes.
*
* \param[in,out] field_data All fields in Fourier space
* \param[in,out] current Array of unique pointers to \c MultiFab storing
* the three components of the current density
*/
virtual void VayDeposition (SpectralFieldData& field_data,
std::array<std::unique_ptr<amrex::MultiFab>,3>& current) override final;
private:
SpectralRealCoefficients C_coef, S_ck_coef;
SpectralComplexCoefficients Theta2_coef, X1_coef, X2_coef, X3_coef, X4_coef;
// Centered modified finite-order k vectors
KVectorComponent modified_kx_vec_centered;
#if (AMREX_SPACEDIM==3)
KVectorComponent modified_ky_vec_centered;
#endif
KVectorComponent modified_kz_vec_centered;
amrex::Array<amrex::Real,3> m_v_galilean;
amrex::Real m_dt;
bool m_update_with_rho;
};
#endif // WARPX_USE_PSATD
#endif // WARPX_GALILEAN_ALGORITHM_H_
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