NewtonianEuler::PrimitiveFromConservative< Dim > Struct Template Reference

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

#include <PrimitiveFromConservative.hpp>

Public Types
using	return_tags
using	argument_tags

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{align*}v^i &= \frac{S^i}{\rho} \\ \epsilon &= \frac{e}{\rho} - \frac{1}{2}\frac{S^2}{\rho^2} \end{align*}

where \(v^i\) is the velocity, \(\epsilon\) 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 \(p = p(\rho, \epsilon)\).

Member Typedef Documentation

argument_tags

template<size_t Dim>

using NewtonianEuler::PrimitiveFromConservative< Dim >::argument_tags

Initial value:

 
      tmpl::list<Tags::MassDensityCons, Tags::MomentumDensity<Dim>,
                 Tags::EnergyDensity, hydro::Tags::EquationOfState<false, 2>>

return_tags

template<size_t Dim>

using NewtonianEuler::PrimitiveFromConservative< Dim >::return_tags

Initial value:

 
      tmpl::list<hydro::Tags::RestMassDensity<DataVector>,
                 hydro::Tags::SpatialVelocity<DataVector, Dim>,
                 hydro::Tags::SpecificInternalEnergy<DataVector>,
                 hydro::Tags::Pressure<DataVector>>

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

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