|September 4, 2009, 06:36||
periodic boundary condition in LES
Join Date: Sep 2009
Posts: 1Rep Power: 0
I am currently performing LES for turbulent channel flow at a reynolds number of 10935 using FLUENT. I have two questions:
- Can i specify in FLUENT periodic boundary condition in streamwise and spanwise simultaneously ? How can i do this?
-Can I specify the shear stress as wall boundary condiction with the periodic pressure gradient in the streamwise direction?
Thanks in advance
|April 10, 2012, 19:17||
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 941Rep Power: 16
You can do periodic boundary conditions in streamwise and spanwise conditions simultaneously. It is possible, I have done this. It is straightforward. Just make the planes periodic (you need to do this using the TUI, it cannot be done with GUI commands).
I do not think that specifying the wall shear stress is appropriate, especially for LES. You would need to know the local wall shear stress everywhere on the walls and apply that as a boundary condition through UDF (which means you would have to already know what the flow looks like, which means that you have already solved your problem, which means that you do not need to do any LES).
|Thread||Thread Starter||Forum||Replies||Last Post|
|Periodic boundary condition in 2 directions||arash||FLUENT||9||August 7, 2015 13:05|
|Periodic Boundary Condition Q||symkimon||Main CFD Forum||0||May 14, 2009 23:54|
|Periodic Boundary Condition||doug||Main CFD Forum||1||April 14, 2009 19:05|
|periodic boundary condition?||Sima Baheri||Phoenics||3||July 7, 2006 03:48|
|settign periodic boundary condition||ayapan||FLUENT||3||March 14, 2006 11:24|