UpdateMomentumVay.H File Reference

#include "Utils/WarpXConst.H"
#include <AMReX_FArrayBox.H>
#include <AMReX_REAL.H>

Go to the source code of this file.

Functions
AMREX_GPU_HOST_DEVICE AMREX_INLINE void	UpdateMomentumVay (amrex::ParticleReal &ux, amrex::ParticleReal &uy, amrex::ParticleReal &uz, const amrex::ParticleReal Ex, const amrex::ParticleReal Ey, const amrex::ParticleReal Ez, const amrex::ParticleReal Bx, const amrex::ParticleReal By, const amrex::ParticleReal Bz, const amrex::ParticleReal q, const amrex::ParticleReal m, const amrex::Real dt, MomentumPushType momentum_push_type)
	Push the particle's positions over one timestep, given the value of its momenta ux, uy, uz Note that UpdateMomentumVay algorithm can be splitted into FirstHalf and SecondHalf momentum updates. FirstHalf and SecondHalf updates are constructed so that performing FirstHalf followed by SecondHalf is mathematically equivalent to a single Full update. For more details, see formulas (9)-(13) in J.L.Vay, "Simulation of beams or plasmas crossing at relativistic velocity", Phys. Plasmas 15, 056701 (2008).

Function Documentation

UpdateMomentumVay()

AMREX_GPU_HOST_DEVICE AMREX_INLINE void UpdateMomentumVay	(	amrex::ParticleReal &	ux,
		amrex::ParticleReal &	uy,
		amrex::ParticleReal &	uz,
		const amrex::ParticleReal	Ex,
		const amrex::ParticleReal	Ey,
		const amrex::ParticleReal	Ez,
		const amrex::ParticleReal	Bx,
		const amrex::ParticleReal	By,
		const amrex::ParticleReal	Bz,
		const amrex::ParticleReal	q,
		const amrex::ParticleReal	m,
		const amrex::Real	dt,
		MomentumPushType	momentum_push_type )

Push the particle's positions over one timestep, given the value of its momenta ux, uy, uz Note that UpdateMomentumVay algorithm can be splitted into FirstHalf and SecondHalf momentum updates. FirstHalf and SecondHalf updates are constructed so that performing FirstHalf followed by SecondHalf is mathematically equivalent to a single Full update. For more details, see formulas (9)-(13) in J.L.Vay, "Simulation of beams or plasmas crossing at relativistic velocity", Phys. Plasmas 15, 056701 (2008).