Approximate Riemann Solver (Roe scheme) for the EulerP 5-equation Navier-Stokes system. More...

#include "EulerP_Physics.hpp"

Include dependency graph for EulerP_ARS.hpp:

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Namespaces
namespace	DNDS
	the host side operators are provided as implemented

namespace	DNDS::EulerP
	Namespace for the EulerP alternative evaluator module with GPU support.

Functions
DNDS_DEVICE_CALLABLE void	DNDS::EulerP::RoeEigenValueFixer (real aL, real aR, real vnL, real vnR, real dLambda, real fixScale, real &lam0, real &lam123, real &lam4)
	Applies entropy fix to Roe eigenvalues to prevent expansion shocks.

template<DeviceBackend B, class TUL , class TUR , class TULPrim , class TURPrim >
DNDS_DEVICE_CALLABLE void	DNDS::EulerP::RoeAverageNS (TUL &&UL, TUR &&UR, TULPrim &&ULPrim, TURPrim &&URPrim, int nVars, real pL, real pR, PhysicsDeviceView< B > &phy, Geom::tPoint &veloRoe, real &vsqrRoe, real &HRoe, real &rhoRoe, real &aSqrRoe)
	Computes Roe-averaged quantities from left and right states.

template<DeviceBackend B>
DNDS_DEVICE_CALLABLE void	DNDS::EulerP::RoeFluxFlow (const TU &UL, const TU &UR, real pL, real pR, const Geom::tPoint &veloRoe, real vsqrRoe, real vgn, const Geom::tPoint &n, real asqrRoe, real aRoe, real HRoe, PhysicsDeviceView< B > &phy, real lam0, real lam123, real lam4, TU &F)
	Computes the complete Roe numerical flux for the 5-equation flow system.

Detailed Description

Approximate Riemann Solver (Roe scheme) for the EulerP 5-equation Navier-Stokes system.

Provides device-callable functions for:

Entropy-corrected eigenvalue fixing (delegating to IdealGas::EntropyFix_HCorrHY)
Roe-averaged state computation (velocity, enthalpy, density, speed of sound)
Complete Roe numerical flux for the 5-equation flow system

The Roe flux formula is F = 0.5 * (F_L + F_R - |A_Roe| * (U_R - U_L)), where |A_Roe| is the Roe-averaged absolute flux Jacobian.

Definition in file EulerP_ARS.hpp.

Namespaces