Gradient between the cell neighbours in X direction. More...

#include <N_pde.h>

Data Fields
double	NWN

double	NEN

double	WC

double	EC

double	SWS

double	SES

Detailed Description

Gradient between the cell neighbours in X direction.

Gradient in X direction between the cell neighbours
____ ____ ____
|    |    |    |
|   NWN  NEN   |
|____|____|____|
|    |    |    |
|   WN    EN   |
|____|____|____|
|    |    |    |
|   SWS  SES   |
|____|____|____|

Gradient in Y direction between the cell neighbours
______________ 
|    |    |    |
|    |    |    |
|NWW-|-NC-|-NEE|
|    |    |    |
|    |    |    |
|SWW-|-SC-|-SEE|
|    |    |    |
|____|____|____|

Gradient in Z direction between the cell neighbours
/______________/
/|    |    |    |
| NWZ| NZ | NEZ|
|____|____|____|
/|    |    |    |
| WZ | CZ | EZ |
|____|____|____|
/|    |    |    |
| SWZ| SZ | SEZ|
|____|____|____|
/____/____/____/

Definition at line 585 of file N_pde.h.