ParticleIO.H File Reference

#include "Particles/WarpXParticleContainer.H"
#include <AMReX_AmrParticles.H>
#include <AMReX_ParIter.H>
#include <AMReX_Gpu.H>
#include <AMReX_REAL.H>

Go to the source code of this file.

Enumerations
enum class	ConvertDirection { WarpX_to_SI , SI_to_WarpX }

Functions
template<typename T_ParticleContainer >
void	particlesConvertUnits (ConvertDirection convert_direction, T_ParticleContainer *pc, amrex::ParticleReal const mass)

Enumeration Type Documentation

ConvertDirection

enum ConvertDirection

strong

Enumerator
WarpX_to_SI
SI_to_WarpX

Function Documentation

particlesConvertUnits()

template<typename T_ParticleContainer >

void particlesConvertUnits	(	ConvertDirection	convert_direction,
		T_ParticleContainer *	pc,
		amrex::ParticleReal const	mass
	)

Convert particle momentum to/from SI

Particle momentum is defined as gamma*velocity, which is neither SI mass*gamma*velocity nor normalized gamma*velocity/c. This converts momentum to SI units (or vice-versa) to write SI data to file. Photons are a special case, since particle momentum is defined as (photon_energy/(m_e * c) ) * u, where u is the photon direction (a unit vector).

Template Parameters

T_ParticleContainer

a WarpX particle container or AmrParticleContainer

Parameters

convert_direction	convert to or from SI
pc	the particle container to manipulate
mass	the particle rest mass to use for conversion