equation_of_state.h File Reference

#include <math.h>
#include "adiabatic_index.h"
#include "inline.h"

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Data Structures
struct	eos_parameters
	The parameters of the equation of state for the gas. More...

Functions
	__attribute__ ((always_inline, const)) INLINE static float gas_internal_energy_from_entropy(float density
	Returns the internal energy given density and entropy.
static INLINE void	eos_init (struct eos_parameters *e, const struct phys_const *phys_const, const struct unit_system *us, struct swift_params *params)
	Initialize the eos parameters.
static INLINE void	eos_print (const struct eos_parameters *e)
	Print the equation of state.

Variables
struct eos_parameters	eos
float	entropy
float	pressure
float	u
float	P

Function Documentation

__attribute__()

__attribute__

(

(always_inline, const)

)

Returns the internal energy given density and entropy.

Returns the sound speed given density and pressure.

Returns the sound speed given density and internal energy.

Returns the internal energy given density and pressure.

Returns the pressure given density and internal energy.

Returns the entropy given density and internal energy.

Returns the sound speed given density and entropy.

Returns the entropy given density and pressure.

Returns the pressure given density and entropy.

Computes \(u = \frac{A\rho^{\gamma-1} }{\gamma - 1}\).

Parameters

density	The density \(\rho\).
entropy	The entropy \(A\).

Computes \(P = A\rho^\gamma\).

Parameters

density	The density \(\rho\).
entropy	The entropy \(A\).

Computes \(A = \frac{P}{\rho^-\gamma}\).

Parameters

density	The density \(\rho\).
pressure	The pressure \(P\).

Returns

The entropy \(A\).

Computes \(c = \sqrt{\gamma A \rho^{\gamma-1}}\).

Parameters

density	The density \(\rho\).
entropy	The entropy \(A\).

Computes \(A = \frac{(\gamma - 1)u}{\rho^{\gamma-1}}\).

Parameters

density	The density \(\rho\)
u	The internal energy \(u\)

Computes \(P = (\gamma - 1)u\rho\).

Parameters

density	The density \(\rho\)
u	The internal energy \(u\)

Computes \(u = \frac{1}{\gamma - 1}\frac{P}{\rho}\).

Parameters

density	The density \(\rho\).
pressure	The pressure \(P\).

Returns

The internal energy \(u\).

Computes \(c = \sqrt{\gamma (\gamma - 1) u }\).

Parameters

density	The density \(\rho\)
u	The internal energy \(u\)

Computes \(c = \sqrt{\frac{\gamma P}{\rho} }\).

Parameters

density	The density \(\rho\)
P	The pressure \(P\)

eos_init()

static INLINE void eos_init ( struct eos_parameters * e, const struct phys_const * phys_const, const struct unit_system * us, struct swift_params * params )

static

Initialize the eos parameters.

Nothing to do here since this EoS is parameter-free.

Parameters

e	The eos_parameters.
phys_const	The physical constants in the internal unit system.
us	The internal unit system.
params	The parsed parameters.

Definition at line 179 of file equation_of_state.h.

eos_print()

static INLINE void eos_print ( const struct eos_parameters * e )

static

Print the equation of state.

Parameters

e	The eos_parameters

Definition at line 188 of file equation_of_state.h.

Variable Documentation

entropy

float entropy

Initial value:

{
 
  return entropy * pow_gamma_minus_one(density) *
         hydro_one_over_gamma_minus_one

Definition at line 49 of file equation_of_state.h.

eos

struct eos_parameters eos

extern

Definition at line 46 of file equation_of_state.c.

P

float P

Initial value:

{
 
  return sqrtf(hydro_gamma * P / density)

Definition at line 164 of file equation_of_state.h.

Referenced by toolbox::blockstructured::internal::createInterpolationMatrixFrom1dTemplateByInsertingZeroColsAndRows(), toolbox::blockstructured::internal::createInterpolationMatrixFrom1dTemplateByLinearInterpolationAlongNormal(), toolbox::blockstructured::interpolateHaloLayer_AoS_linear_with_constant_extrapolation(), toolbox::blockstructured::interpolateHaloLayer_AoS_linear_with_constant_extrapolation_and_linear_normal_interpolation(), toolbox::blockstructured::interpolateHaloLayer_AoS_linear_with_linear_extrapolation(), toolbox::blockstructured::interpolateHaloLayer_AoS_linear_with_linear_extrapolation_and_linear_normal_interpolation(), toolbox::blockstructured::interpolateHaloLayer_AoS_piecewise_constant(), and tarch::la::tests::DynamicMatrixTest::testBatchedMultiplyAoS().

pressure

p force pressure

Initial value:

{
 
  return pressure * pow_minus_gamma(density)

Definition at line 79 of file equation_of_state.h.

Referenced by applications::exahype2::CompressibleNavierStokes::NavierStokesSolver::boundaryConditions(), applications::exahype2::CompressibleNavierStokes::NavierStokesSolver::calculateDerivatives(), applications::exahype2::CompressibleNavierStokes::NavierStokesSolver::flux(), swift2::kernels::legacy::hydro_predict_extra(), swift2::kernels::legacy::hydro_reset_predicted_values(), applications::exahype2::CompressibleNavierStokes::NavierStokesSolver::initialCondition(), benchmarks::swift2::hydro::kernel_throughput::initNohProblemIC(), applications::exahype2::CompressibleNavierStokes::NavierStokesSolver::maxEigenvalue(), and applications::exahype2::CompressibleNavierStokes::NavierStokesSolver::sourceTerm().

u

const struct cosmology const struct pressure_floor_props const float u

Initial value:

{
 
  return hydro_gamma_minus_one * u * pow_minus_gamma_minus_one(density)

Definition at line 107 of file equation_of_state.h.

Referenced by examples::exahype2::mgccz4::admconstraints(), applications::exahype2::ccz4::admconstraints(), TP::Utilities::chebft_Extremes(), TP::Utilities::chebft_Zeros(), applications::exahype2::swe::frictionlaws::coulombFriction(), TP::Utilities::fourder(), TP::Utilities::fourder2(), TP::Utilities::fourev(), TP::Utilities::fourft(), tarch::multicore::getNumberOfUnmaskedThreads(), swift2::kernels::legacy::kernelHydro::kernel_deval(), swift2::kernels::legacy::kernelHydro::kernel_eval(), main(), applications::exahype2::swe::frictionlaws::materialDependentBasalFriction(), applications::exahype2::ccz4::ncp(), examples::exahype2::mgccz4::ncp(), tarch::multicore::printUnmaskedThreads(), Numerics::rotate_dofs(), Numerics::rotate_dofs_inverse(), petsc::LinearEquationSystem::solve(), applications::exahype2::ccz4::source(), examples::exahype2::mgccz4::source(), applications::exahype2::ccz4::TestingOutput(), and applications::exahype2::ccz4::ThetaOutputNCP().