NavierStokes2DEigen.c File Reference

Contains the functions to compute left and right eigenvectors for the 2D Navier Stokes equations. More...

#include <stdlib.h>
#include <math.h>
#include <basic.h>
#include <arrayfunctions.h>
#include <mathfunctions.h>
#include <physicalmodels/navierstokes2d.h>
#include <hypar.h>

Go to the source code of this file.

Functions
int	NavierStokes2DLeftEigenvectors (double *u, double *L, void *p, int dir)
int	NavierStokes2DRightEigenvectors (double *u, double *R, void *p, int dir)

Detailed Description

Contains the functions to compute left and right eigenvectors for the 2D Navier Stokes equations.

Author

Debojyoti Ghosh

Definition in file NavierStokes2DEigen.c.

Function Documentation

int NavierStokes2DLeftEigenvectors	(	double *	u,
		double *	L,
		void *	p,
		int	dir
	)

Compute the left eigenvections for the 2D Navier Stokes equations. This function just calls the macro _NavierStokes2DLeftEigenvectors_ and is not used by any functions within the 2D Navier Stokes module. However, it's necessary to define it and provide it to the the solver object (HyPar) so that it can then send it to interpolation functions for a characteristic-based reconstruction.

Parameters

u	Conserved solution at a grid point
L	Array of size nvar^2 = 4^2 to save the matrix of left eigenvectors in (row-major format).
p	Object of type NavierStokes2D with physics-related variables
dir	Spatial dimension (x or y)

Definition at line 19 of file NavierStokes2DEigen.c.

{
  NavierStokes2D *param  = (NavierStokes2D*)  p;
  _NavierStokes2DLeftEigenvectors_(u,L,param->gamma,dir);
  return(0);
}

int NavierStokes2DRightEigenvectors	(	double *	u,
		double *	R,
		void *	p,
		int	dir
	)

Compute the right eigenvections for the 2D Navier Stokes equations. This function just calls the macro _NavierStokes2DRightEigenvectors_ and is not used by any functions within the 2D Navier Stokes module. However, it's necessary to define it and provide it to the the solver object (HyPar) so that it can then send it to interpolation functions for a characteristic-based reconstruction.

Parameters

u	Conserved solution at a grid point
R	Array of size nvar^2 = 4^2 to save the matrix of right eigenvectors in (row-major format).
p	Object of type NavierStokes2D with physics-related variables
dir	Spatial dimension (x or y)

Definition at line 38 of file NavierStokes2DEigen.c.

{
  NavierStokes2D *param  = (NavierStokes2D*)  p;
  _NavierStokes2DRightEigenvectors_(u,R,param->gamma,dir);
  return(0);
}