CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   Main CFD Forum (http://www.cfd-online.com/Forums/main/)
-   -   Wall Damping Function (http://www.cfd-online.com/Forums/main/6087-wall-damping-function.html)

Apurva May 7, 2003 17:40

Wall Damping Function
 
HI,

While working on k-epsilon turbulence model, for low Re case we use wall damping functions as given by Lam & Bremhost, and Launder-Sharma. I want to know how will we decide that how many cells from the wall boundary should we use the function. Is it just the cell adjacent to wall or on some other criteria.

Thanks

Apurva

gorka May 8, 2003 04:24

Re: Wall Damping Function
 
Hi,

Wall damping functions are applied to all the cells in the domain. The fact is that their value is 1 (no damping then...) far from the walls. The "frontier" is obtained as a result of the calculation and then, is very difficult to know which cells will be affected previously.

Best regards,

Gorka

XX_x May 9, 2003 04:44

See Poisont & Veynante's book, page345 for details
 
See Poisont & Veynante's book, page345 for details

Apurva May 9, 2003 05:30

Re: See Poisont & Veynante's book, page345 for det
 
Hi,

can you tell me the full name of the book.

Thanks

Apurva

RMG May 14, 2003 11:34

The only book they wrote together:
 
The only book they wrote together: Theoretical and Numerical Combustion


All times are GMT -4. The time now is 04:56.