n_upwind.c File Reference

#include <math.h>
#include <grass/N_pde.h>

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Functions
double	N_full_upwinding (double sprod, double distance, double D)
	full upwinding stabilization algorithm More...
double	N_exp_upwinding (double sprod, double distance, double D)
	exponential upwinding stabilization algorithm More...

Function Documentation

N_exp_upwinding()

double N_exp_upwinding	(	double	sprod,
		double	distance,
		double	D
	)

exponential upwinding stabilization algorithm

The arguments are values to compute the local peclet number

Parameters

sprod	double – the scalar produkt between the velocity vector and the normal vector between two points
distance	double – distance between two points
D	double – diffusion/dispersion tensor part between two points

Returns

the weighting factor

Definition at line 63 of file n_upwind.c.

References D.

N_full_upwinding()

double N_full_upwinding	(	double	sprod,
		double	distance,
		double	D
	)

full upwinding stabilization algorithm

The arguments are values to compute the local peclet number

Parameters

sprod	double – the scalar produkt between the velocity vector and the normal vector between two points
distance	double – distance between two points
D	double – diffusion/dispersion tensor part between two points

Returns

the weighting factor

Definition at line 33 of file n_upwind.c.

References D.