This is an exact two-component Riemann solver in Toro's book. 更多...

#include <stdio.h>
#include <math.h>
#include <stdbool.h>

riemann_solver_starPU.c 的引用(Include)关系图:

函数
static double	GuessP (const double DL, const double DR, const double UL, const double UR, const double PL, const double PR, const double CL, const double CR, const double GammaL, const double GammaR, const double eps)
	Provide a guess value for pressure PM in the Star Region. 更多...

static void	PreFun (double F, double FD, const double P, const double DK, const double PK, const double CK, const double Gamma)
	Evaluate the pressure functions FL and FR in exact Riemann solver. 更多...

double	Riemann_solver_starPU (double U_star, double P_star, const double GammaL, const double GammaR, const double UL, const double UR, const double PL, const double PR, const double CL, const double CR, _Bool *CRW, const double eps, const double TOLPRE, const int NRITER)
	EXACT RIEMANN SOLVER FOR Two-Component γ-Law Gas 更多...

详细描述

This is an exact two-component Riemann solver in Toro's book.

在文件 riemann_solver_starPU.c 中定义.

函数说明

◆ GuessP()

static double GuessP	(	const double	DL,
		const double	DR,
		const double	UL,
		const double	UR,
		const double	PL,
		const double	PR,
		const double	CL,
		const double	CR,
		const double	GammaL,
		const double	GammaR,
		const double	eps
	)

static

Provide a guess value for pressure PM in the Star Region.

The choice is made according to adaptive Riemann solver using the PVRS (or TRRS or TSRS) ApproxImate Riemann Solvers (AIRS).

参数

[in]	DL,UL,PL,CL	Initial Density/Velocity/Pressure/Sound_speed on left state.
[in]	DR,UR,PR,CR	Initial Density/Velocity/Pressure/Sound_speed on right state.
[in]	GammaL,GammaR	Ratio of specific heats.
[in]	eps	The largest value can be seen as zero.

返回: PM: A guess value for pressure in the Star Region.

在文件 riemann_solver_starPU.c 第 20 行定义.

这是这个函数的调用关系图:

◆ PreFun()

static void PreFun	(	double *	F,
		double *	FD,
		const double	P,
		const double	DK,
		const double	PK,
		const double	CK,
		const double	Gamma
	)

static

Evaluate the pressure functions FL and FR in exact Riemann solver.

参数

[out]	F	Pressure function FL or FR.
[out]	FD	First derivative of F with respect to pressure P.
[in]	P	Pressure.
[in]	DK	Density.
[in]	PK	Pressure.
[in]	CK	Sound speed.
[in]	Gamma	Ratio of specific heats.

在文件 riemann_solver_starPU.c 第 71 行定义.

这是这个函数的调用关系图:

◆ Riemann_solver_starPU()

double Riemann_solver_starPU	(	double *	U_star,
		double *	P_star,
		const double	GammaL,
		const double	GammaR,
		const double	UL,
		const double	UR,
		const double	PL,
		const double	PR,
		const double	CL,
		const double	CR,
		_Bool *	CRW,
		const double	eps,
		const double	TOLPRE,
		const int	NRITER
	)

EXACT RIEMANN SOLVER FOR Two-Component γ-Law Gas

The purpose of this function is to compute the Riemann solution for pressure and velocity in the Star Region, for the time dependent one dimensional Euler equations for two-component γ-law gas.

参数

[out]	U_star,P_star	Velocity/Pressure in star region.
[in]	UL,PL,CL	Initial Velocity/Pressure/Sound_speed on left state.
[in]	UR,PR,CR	Initial Velocity/Pressure/Sound_speed on right state.
[in]	GammaL,GammaR	Ratio of specific heats.
[out]	CRW	Centred Rarefaction Wave (CRW) Indicator of left and right waves. true: CRW false: Shock wave
[in]	eps	The largest value can be seen as zero.
[in]	TOLPRE	Condition value of 'gap' at the end of the iteration.
[in]	NRITER	Maximum iteration step (Recommended Value: 100).

返回: change: Relative pressure change after the last iteration.

作者: E. F. Toro

日期: February 1st 1999

参见: Theory is found in Chapter 4 of Reference [1].
[1] E. F. Toro, "Riemann Solvers and Numerical Methods for Fluid Dynamics". Springer-Verlag, Second Edition, 1999

在文件 riemann_solver_starPU.c 第 115 行定义.

函数调用图:

这是这个函数的调用关系图: