1 files changed, 33 insertions, 0 deletions
diff --git a/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/GalileanAlgorithm.H b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/GalileanAlgorithm.H
new file mode 100644
index 000000000..e59b1902c
--- /dev/null
+++ b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/GalileanAlgorithm.H
@@ -0,0 +1,33 @@
+#ifndef WARPX_GALILEAN_ALGORITHM_H_
+#define WARPX_GALILEAN_ALGORITHM_H_
+
+#include <SpectralBaseAlgorithm.H>
+
+/* \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);
+        // 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::Array<amrex::Real, 3>& v_galilean,
+                                    const amrex::Real dt);
+
+    private:
+        SpectralRealCoefficients C_coef, S_ck_coef;
+        SpectralComplexCoefficients Theta2_coef, X1_coef, X2_coef, X3_coef, X4_coef;
+};
+
+#endif // WARPX_GALILEAN_ALGORITHM_H_