Device-callable view of physics parameters providing thermodynamic operations. More...

#include <EulerP_Physics.hpp>

Collaboration diagram for DNDS::EulerP::PhysicsDeviceView< B >:

Public Member Functions
template<class tUPrim , class tDiffUPrim >
DNDS_DEVICE_CALLABLE real	getMuTot (tUPrim &&UPrim, tDiffUPrim &&DiffUPrim, int nVars, real p, real T) const
	Computes the total dynamic viscosity.

template<class tUPrim , class tU >
DNDS_DEVICE_CALLABLE void	Cons2Prim (tU &&U, tUPrim &&UPrim, int nVars) const
	Converts conservative state to primitive state.

template<class tU , class tUPrim , class tDiffU , class tDiffUPrim >
DNDS_DEVICE_CALLABLE void	Cons2PrimDiff (tU &&U, tUPrim &&UPrim, tDiffU &&DiffU, tDiffUPrim &&DiffUPrim, int nVars) const
	Converts conservative variable gradients to primitive variable gradients.

template<class tUPrim , class tU >
DNDS_DEVICE_CALLABLE void	Prim2Cons (tUPrim &&UPrim, tU &&U, int nVars) const
	Converts primitive state to conservative state.

template<class tU >
DNDS_DEVICE_CALLABLE real	Cons2EInternal (tU &&U, int nVars) const
	Extracts internal energy from a conservative state vector.

template<class tUPrim >
DNDS_DEVICE_CALLABLE real	Prim2Pressure (tUPrim &&UPrim, int nVars, real T) const
	Computes pressure from the primitive state using the ideal gas law.

template<class tUPrim >
DNDS_DEVICE_CALLABLE auto	Prim2GammaAcousticSpeed (tUPrim &&UPrim, int nVars, real p) const
	Computes the ratio of specific heats and the acoustic speed of sound.

template<class tUPrim >
DNDS_DEVICE_CALLABLE real	Prim2Temperature (tUPrim &&UPrim, int nVars) const
	Computes temperature from the primitive state.

template<class tU >
DNDS_DEVICE_CALLABLE real	Pressure2Enthalpy (tU &&U, int nVars, real p) const
	Computes specific total enthalpy from conservative state and pressure.

template<class tU >
DNDS_DEVICE_CALLABLE real	Enthalpy2Pressure (tU &&U, int nVars, real H) const
	Recovers pressure from specific total enthalpy and conservative state.

Public Attributes
vector_DeviceView< B, real, int32_t >	reference_values
	Device-resident reference values (e.g., freestream quantities).

PhysicsParams	params
	Gas physical parameters (copied to device).

Detailed Description

template<DeviceBackend B>
struct DNDS::EulerP::PhysicsDeviceView< B >

Device-callable view of physics parameters providing thermodynamic operations.

Wraps a device-resident view of reference values and a copy of PhysicsParams. All methods are DNDS_DEVICE_CALLABLE for use in both Host and CUDA kernels.

Note: Primitive state convention: prim[0] = rho, prim[1..3] = velocity, prim[I4] = internal energy (rho*e). This differs from the Euler module where prim[I4] stores pressure.

Template Parameters

B	Device backend (Host or CUDA).

Definition at line 63 of file EulerP_Physics.hpp.

Member Function Documentation

◆ Cons2EInternal()

template<DeviceBackend B>

template<class tU >

DNDS_DEVICE_CALLABLE real DNDS::EulerP::PhysicsDeviceView< B >::Cons2EInternal	(	tU &&	U,
		int	nVars
	)		const

inline

Extracts internal energy from a conservative state vector.

Computes e = E - 0.5 * (rhoU^2 + rhoV^2 + rhoW^2) / rho.

Template Parameters

tU	Conservative state vector type (deduced).

Parameters

U	Conservative state vector.
nVars	Total number of variables (flow + turbulence).

Returns: Internal energy e = rho * cv * T for an ideal gas.

Definition at line 222 of file EulerP_Physics.hpp.

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◆ Cons2Prim()

template<DeviceBackend B>

template<class tUPrim , class tU >

DNDS_DEVICE_CALLABLE void DNDS::EulerP::PhysicsDeviceView< B >::Cons2Prim	(	tU &&	U,
		tUPrim &&	UPrim,
		int	nVars
	)		const

inline

Converts conservative state to primitive state.

Computes primitive variables from conservative variables:

prim[0] = rho (density, copied directly)
prim[1..3] = velocity components (U_i / rho)
prim[I4] = internal energy e = E - 0.5 * rho * v^2
prim[i >= nVarsFlow] = U_i / rho (specific turbulence quantities)

Note: prim[I4] stores internal energy (rho*e), NOT pressure.

Template Parameters

tUPrim	Primitive state vector type (deduced).
tU	Conservative state vector type (deduced).

Parameters

	U	Input conservative state vector.
[out]	UPrim	Output primitive state vector.
	nVars	Total number of variables (flow + turbulence).

Definition at line 112 of file EulerP_Physics.hpp.

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◆ Cons2PrimDiff()

template<DeviceBackend B>

template<class tU , class tUPrim , class tDiffU , class tDiffUPrim >

DNDS_DEVICE_CALLABLE void DNDS::EulerP::PhysicsDeviceView< B >::Cons2PrimDiff	(	tU &&	U,
		tUPrim &&	UPrim,
		tDiffU &&	DiffU,
		tDiffUPrim &&	DiffUPrim,
		int	nVars
	)		const

inline

Converts conservative variable gradients to primitive variable gradients.

Given conservative state U, primitive state UPrim, and conservative gradient DiffU, computes the corresponding primitive gradient DiffUPrim using the chain rule:

nabla(v_i) = (nabla(rho*v_i) - nabla(rho) * v_i) / rho
nabla(e) = nabla(E) - 0.5 * nabla(rho) * v^2 - rho * dot(nabla(v), v)

Template Parameters

tU	Conservative state type (deduced).
tUPrim	Primitive state type (deduced).
tDiffU	Conservative gradient type (deduced), 3 x nVars.
tDiffUPrim	Primitive gradient type (deduced), 3 x nVars.

Parameters

	U	Conservative state vector.
	UPrim	Primitive state vector (must be pre-computed via Cons2Prim).
	DiffU	Conservative variable spatial gradients (3 rows = x,y,z directions).
[out]	DiffUPrim	Output primitive variable spatial gradients.
	nVars	Total number of variables (flow + turbulence).

Definition at line 149 of file EulerP_Physics.hpp.

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◆ Enthalpy2Pressure()

template<DeviceBackend B>

template<class tU >

DNDS_DEVICE_CALLABLE real DNDS::EulerP::PhysicsDeviceView< B >::Enthalpy2Pressure	(	tU &&	U,
		int	nVars,
		real	H
	)		const

inline

Recovers pressure from specific total enthalpy and conservative state.

p = H * rho - E (inverse of Pressure2Enthalpy).

Template Parameters

tU	Conservative state vector type (deduced).

Parameters

U	Conservative state vector.
nVars	Total number of variables.
H	Specific total enthalpy.

Returns: Pressure p.

perfect gas here

Definition at line 324 of file EulerP_Physics.hpp.

◆ getMuTot()

template<DeviceBackend B>

template<class tUPrim , class tDiffUPrim >

DNDS_DEVICE_CALLABLE real DNDS::EulerP::PhysicsDeviceView< B >::getMuTot	(	tUPrim &&	UPrim,
		tDiffUPrim &&	DiffUPrim,
		int	nVars,
		real	p,
		real	T
	)		const

inline

Computes the total dynamic viscosity.

Currently returns only the physical viscosity (no RANS turbulence model contribution).

Template Parameters

tUPrim	Primitive state vector type (deduced).
tDiffUPrim	Primitive state gradient type (deduced).

Parameters

UPrim	Primitive state vector (unused in current constant-viscosity model).
DiffUPrim	Primitive gradient (unused in current constant-viscosity model).
nVars	Total number of variables (flow + turbulence).
p	Pressure (unused in current model).
T	Temperature (unused in current model).

Returns: Total dynamic viscosity mu_total = mu_physical.

Definition at line 85 of file EulerP_Physics.hpp.

◆ Pressure2Enthalpy()

template<DeviceBackend B>

template<class tU >

DNDS_DEVICE_CALLABLE real DNDS::EulerP::PhysicsDeviceView< B >::Pressure2Enthalpy	(	tU &&	U,
		int	nVars,
		real	p
	)		const

inline

Computes specific total enthalpy from conservative state and pressure.

H = (E + p) / rho, using IdealGas::Enthalpy.

Template Parameters

tU	Conservative state vector type (deduced).

Parameters

U	Conservative state vector.
nVars	Total number of variables.
p	Pressure.

Returns: Specific total enthalpy H.

perfect gas here

Definition at line 305 of file EulerP_Physics.hpp.

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◆ Prim2Cons()

template<DeviceBackend B>

template<class tUPrim , class tU >

DNDS_DEVICE_CALLABLE void DNDS::EulerP::PhysicsDeviceView< B >::Prim2Cons	(	tUPrim &&	UPrim,
		tU &&	U,
		int	nVars
	)		const

inline

Converts primitive state to conservative state.

Inverse of Cons2Prim:

cons[0] = rho
cons[1..3] = rho * v_i
cons[I4] = E = e + 0.5 * rho * v^2 (total energy)
cons[i >= nVarsFlow] = rho * prim_i

Template Parameters

tUPrim	Primitive state vector type (deduced).
tU	Conservative state vector type (deduced).

Parameters

	UPrim	Input primitive state vector.
[out]	U	Output conservative state vector.
	nVars	Total number of variables (flow + turbulence).

Definition at line 193 of file EulerP_Physics.hpp.

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◆ Prim2GammaAcousticSpeed()

template<DeviceBackend B>

template<class tUPrim >

DNDS_DEVICE_CALLABLE auto DNDS::EulerP::PhysicsDeviceView< B >::Prim2GammaAcousticSpeed	(	tUPrim &&	UPrim,
		int	nVars,
		real	p
	)		const

inline

Computes the ratio of specific heats and the acoustic speed of sound.

Template Parameters

tUPrim Primitive state vector type (deduced).

Parameters

UPrim	Primitive state vector.
nVars	Total number of variables.
p	Pressure.

Returns: A std::tuple of (gamma, speed_of_sound) where a = sqrt(gamma * p / rho).

Definition at line 268 of file EulerP_Physics.hpp.

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◆ Prim2Pressure()

template<DeviceBackend B>

template<class tUPrim >

DNDS_DEVICE_CALLABLE real DNDS::EulerP::PhysicsDeviceView< B >::Prim2Pressure	(	tUPrim &&	UPrim,
		int	nVars,
		real	T
	)		const

inline

Computes pressure from the primitive state using the ideal gas law.

Delegates to IdealGas::Pressure_From_InternalEnergy using prim[I4] (internal energy) and the ratio of specific heats gamma.

Template Parameters

tUPrim Primitive state vector type (deduced).

Parameters

UPrim	Primitive state vector (prim[I4] = internal energy).
nVars	Total number of variables.
T	Temperature (unused; pressure is computed from internal energy directly).

Returns: Pressure p = (gamma - 1) * e.

perfect gas here — prim[I4] stores internal energy e

Definition at line 251 of file EulerP_Physics.hpp.

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◆ Prim2Temperature()

template<DeviceBackend B>

template<class tUPrim >

DNDS_DEVICE_CALLABLE real DNDS::EulerP::PhysicsDeviceView< B >::Prim2Temperature	(	tUPrim &&	UPrim,
		int	nVars
	)		const

inline

Computes temperature from the primitive state.

For a perfect gas: T = e / (rho * cp), where e = prim[I4] is internal energy.

Template Parameters

tUPrim Primitive state vector type (deduced).

Parameters

UPrim	Primitive state vector.
nVars	Total number of variables.

Returns: Temperature T.

perfect gas here

Definition at line 286 of file EulerP_Physics.hpp.

Member Data Documentation

◆ params

template<DeviceBackend B>

PhysicsParams DNDS::EulerP::PhysicsDeviceView< B >::params

Gas physical parameters (copied to device).

Definition at line 66 of file EulerP_Physics.hpp.

◆ reference_values

template<DeviceBackend B>

vector_DeviceView<B, real, int32_t> DNDS::EulerP::PhysicsDeviceView< B >::reference_values

Device-resident reference values (e.g., freestream quantities).

Definition at line 65 of file EulerP_Physics.hpp.

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

/home/runner/work/DNDSR/DNDSR/src/EulerP/EulerP_Physics.hpp

Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation

◆ Cons2EInternal()

◆ Cons2Prim()

◆ Cons2PrimDiff()

◆ Enthalpy2Pressure()

◆ getMuTot()

◆ Pressure2Enthalpy()

◆ Prim2Cons()

◆ Prim2GammaAcousticSpeed()

◆ Prim2Pressure()

◆ Prim2Temperature()

Member Data Documentation

◆ params

◆ reference_values