DNDS::IdealGas Namespace Reference

Enumerations
enum class	PrimVariable { Pressure , InternalEnergy }

Functions
DNDS_DEVICE_CALLABLE void	IdealGasThermal (real E, real rho, real vSqr, real gamma, real &p, real &asqr, real &H)
	Compute pressure, speed-of-sound squared, and specific enthalpy from total energy, density, and velocity squared.
DNDS_DEVICE_CALLABLE real	Pressure_From_InternalEnergy (real e, real gamma)
	Pressure from internal energy: p = (gamma - 1) * e.
DNDS_DEVICE_CALLABLE real	InternalEnergy_From_Pressure (real p, real gamma)
	Internal energy from pressure: e = p / (gamma - 1)
DNDS_DEVICE_CALLABLE real	Enthalpy (real E, real rho, real p)
	Specific enthalpy from conservative state: H = (E + p) / rho.
DNDS_DEVICE_CALLABLE real	SpeedOfSoundSqr (real gamma, real p, real rho)
	Speed of sound squared: a^2 = gamma * p / rho.
template<PrimVariable prim>
DNDS_DEVICE_CALLABLE real	Cons2PrimEnergy (real E, real rho, real vSqr, real gamma)
	Convert conservative energy to primitive energy-index value.
template<PrimVariable prim>
DNDS_DEVICE_CALLABLE real	Prim2ConsEnergy (real primE, real rho, real vSqr, real gamma)
	Convert primitive energy-index value to conservative total energy.
template<PrimVariable prim>
DNDS_DEVICE_CALLABLE real	PrimE2Pressure (real primE, real gamma)
	Get pressure from the primitive energy-index value.
DNDS_DEVICE_CALLABLE real	RoeSpeedOfSoundSqr (real gamma, real HRoe, real vsqrRoe)
	Roe-averaged speed of sound squared: a^2 = (gamma-1)(H - 0.5*v^2).
DNDS_DEVICE_CALLABLE void	RoeAlphaDecomposition (real incU0, real incU123N, real incU4b, real veloRoeN, real HRoe, real asqrRoe, real aRoe, real gamma, real &alpha0, real &alpha1, real &alpha4)
	Roe alpha-decomposition coefficients for the 1D wave structure.
DNDS_DEVICE_CALLABLE void	EntropyFix_HCorrHY (real aL, real aR, real vnL, real vnR, real dLambda, real fixScale, real &lam0, real &lam123, real &lam4)
	H-correction + Harten-Yee entropy fix (scheme 8 in Euler module).

Enumeration Type Documentation

PrimVariable

enum class DNDS::IdealGas::PrimVariable

strong

Which thermodynamic variable is stored at the energy index of the primitive state vector.

Enumerator
Pressure	prim[I4] = p (Euler convention)
InternalEnergy	prim[I4] = rho * e_internal (EulerP convention)

Definition at line 23 of file IdealGasPhysics.hpp.

Function Documentation

Cons2PrimEnergy()

template<PrimVariable prim>

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::Cons2PrimEnergy ( real  E, real  rho, real  vSqr, real  gamma  )

inline

Convert conservative energy to primitive energy-index value.

Template Parameters

prim	Whether to store pressure or internal energy.

Parameters

E	Total energy (conservative).
rho	Density.
vSqr	Velocity squared.
gamma	Ratio of specific heats.

Returns

The value to store at prim[I4].

Definition at line 90 of file IdealGasPhysics.hpp.

Enthalpy()

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::Enthalpy ( real  E, real  rho, real  p  )

inline

Specific enthalpy from conservative state: H = (E + p) / rho.

Definition at line 62 of file IdealGasPhysics.hpp.

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EntropyFix_HCorrHY()

DNDS_DEVICE_CALLABLE void DNDS::IdealGas::EntropyFix_HCorrHY ( real  aL, real  aR, real  vnL, real  vnR, real  dLambda, real  fixScale, real &  lam0, real &  lam123, real &  lam4  )

inline

H-correction + Harten-Yee entropy fix (scheme 8 in Euler module).

This is the entropy fix scheme used by both Euler and EulerP.

Definition at line 194 of file IdealGasPhysics.hpp.

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IdealGasThermal()

DNDS_DEVICE_CALLABLE void DNDS::IdealGas::IdealGasThermal ( real  E, real  rho, real  vSqr, real  gamma, real &  p, real &  asqr, real &  H  )

inline

Compute pressure, speed-of-sound squared, and specific enthalpy from total energy, density, and velocity squared.

Definition at line 38 of file IdealGasPhysics.hpp.

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InternalEnergy_From_Pressure()

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::InternalEnergy_From_Pressure ( real  p, real  gamma  )

inline

Internal energy from pressure: e = p / (gamma - 1)

Definition at line 55 of file IdealGasPhysics.hpp.

Pressure_From_InternalEnergy()

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::Pressure_From_InternalEnergy ( real  e, real  gamma  )

inline

Pressure from internal energy: p = (gamma - 1) * e.

Definition at line 48 of file IdealGasPhysics.hpp.

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Prim2ConsEnergy()

template<PrimVariable prim>

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::Prim2ConsEnergy ( real  primE, real  rho, real  vSqr, real  gamma  )

inline

Convert primitive energy-index value to conservative total energy.

Template Parameters

prim	Whether prim[I4] stores pressure or internal energy.

Parameters

primE	The primitive energy-index value (p or e).
rho	Density.
vSqr	Velocity squared.
gamma	Ratio of specific heats.

Returns

Total energy E.

Definition at line 111 of file IdealGasPhysics.hpp.

PrimE2Pressure()

template<PrimVariable prim>

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::PrimE2Pressure ( real  primE, real  gamma  )

inline

Get pressure from the primitive energy-index value.

Template Parameters

prim	Whether prim[I4] stores pressure or internal energy.

Parameters

primE	The primitive energy-index value.
gamma	Ratio of specific heats.

Definition at line 128 of file IdealGasPhysics.hpp.

RoeAlphaDecomposition()

DNDS_DEVICE_CALLABLE void DNDS::IdealGas::RoeAlphaDecomposition ( real  incU0, real  incU123N, real  incU4b, real  veloRoeN, real  HRoe, real  asqrRoe, real  aRoe, real  gamma, real &  alpha0, real &  alpha1, real &  alpha4  )

inline

Roe alpha-decomposition coefficients for the 1D wave structure.

Computes the wave strengths alpha0, alpha1, alpha4 from the jump across the interface.

Parameters

	incU0	Jump in density (UR(0) - UL(0)).
	incU123N	Jump in normal momentum.
	incU4b	Jump in (E - alpha23VT . veloRoe).
	veloRoeN	Roe-averaged normal velocity.
	HRoe	Roe-averaged enthalpy.
	asqrRoe	Roe-averaged speed of sound squared.
	aRoe	Roe-averaged speed of sound.
	gamma	Ratio of specific heats.
[out]	alpha0	Left-going acoustic wave strength.
[out]	alpha1	Entropy wave strength.
[out]	alpha4	Right-going acoustic wave strength.

Definition at line 168 of file IdealGasPhysics.hpp.

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RoeSpeedOfSoundSqr()

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::RoeSpeedOfSoundSqr ( real  gamma, real  HRoe, real  vsqrRoe  )

inline

Roe-averaged speed of sound squared: a^2 = (gamma-1)(H - 0.5*v^2).

Definition at line 144 of file IdealGasPhysics.hpp.

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SpeedOfSoundSqr()

DNDS_DEVICE_CALLABLE real DNDS::IdealGas::SpeedOfSoundSqr ( real  gamma, real  p, real  rho  )

inline

Speed of sound squared: a^2 = gamma * p / rho.

Definition at line 69 of file IdealGasPhysics.hpp.

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