HyPar  1.0
Finite-Difference Hyperbolic-Parabolic PDE Solver on Cartesian Grids
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Pages
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
uConserved solution at a grid point
LArray of size nvar^2 = 4^2 to save the matrix of left eigenvectors in (row-major format).
pObject of type NavierStokes2D with physics-related variables
dirSpatial dimension (x or y)

Definition at line 19 of file NavierStokes2DEigen.c.

26 {
27  NavierStokes2D *param = (NavierStokes2D*) p;
29  return(0);
30 }
#define _NavierStokes2DLeftEigenvectors_(u, L, ga, dir)
Structure containing variables and parameters specific to the 2D Navier Stokes equations. This structure contains the physical parameters, variables, and function pointers specific to the 2D Navier-Stokes equations.
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
uConserved solution at a grid point
RArray of size nvar^2 = 4^2 to save the matrix of right eigenvectors in (row-major format).
pObject of type NavierStokes2D with physics-related variables
dirSpatial dimension (x or y)

Definition at line 38 of file NavierStokes2DEigen.c.

45 {
46  NavierStokes2D *param = (NavierStokes2D*) p;
48  return(0);
49 }
#define _NavierStokes2DRightEigenvectors_(u, R, ga, dir)
Structure containing variables and parameters specific to the 2D Navier Stokes equations. This structure contains the physical parameters, variables, and function pointers specific to the 2D Navier-Stokes equations.