NewtonianEuler::PrimitiveFromConservative< Dim > Struct Template Reference

Compute the primitive variables from the conservative variables. More...

#include <PrimitiveFromConservative.hpp>

Public Types
using	return_tags = implementation defined
using	argument_tags = implementation defined

Static Public Member Functions
template<size_t ThermodynamicDim>
static void	apply (gsl::not_null< Scalar< DataVector > * > mass_density, gsl::not_null< tnsr::I< DataVector, Dim > * > velocity, gsl::not_null< Scalar< DataVector > * > specific_internal_energy, gsl::not_null< Scalar< DataVector > * > pressure, const Scalar< DataVector > &mass_density_cons, const tnsr::I< DataVector, Dim > &momentum_density, const Scalar< DataVector > &energy_density, const EquationsOfState::EquationOfState< false, ThermodynamicDim > &equation_of_state)

Detailed Description

template<size_t Dim>
struct NewtonianEuler::PrimitiveFromConservative< Dim >

Compute the primitive variables from the conservative variables.

$$\begin{array}{rl}{v}^i& =\frac{S^i}{\rho }\\ ϵ& =\frac{e}{\rho }-\frac{1}{2}\frac{S^2}{{\rho }^2}\end{array}$$

where $v^i$ is the velocity, $ϵ$ is the specific internal energy, $e$ is the energy density, $\rho$ is the mass density, $S^i$ is the momentum density, and $S^2$ is the momentum density squared.

This routine also returns the mass density as a primitive, and the pressure from a generic equation of state $p=p(\rho ,ϵ)$.

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The documentation for this struct was generated from the following file:

• src/Evolution/Systems/NewtonianEuler/PrimitiveFromConservative.hpp