|November 5, 2009, 06:47||
nonuniform boundary condition( U=f(y) ) ?
Join Date: Oct 2009
Posts: 186Rep Power: 8
I want to use nonuniform boundary condition in flow inlet. the velocity is changing with height. That is U=f(y). How can I add this condition to inflow boundary condition ?
Thank you very much.
|November 5, 2009, 10:48||
Join Date: Mar 2009
Location: Krefeld, Germany
Posts: 41Rep Power: 9
you can either look at the HotRoom example in the heatTransfer/buoyant* example. Here there is initial temperature field generated on a patch. Look at the setHotRoom.C-File and it will be quite clear how to do something similar for U.
Or take a look a the wiki:
Here you find funkySetFields and groovyBC which also should solve your problem.
|November 5, 2009, 13:28||
Join Date: Jun 2009
Posts: 28Rep Power: 9
Here is the sample of boundary condition where your wall moving and you create a file (here called time-series) and add the speed for each time instant:
The format for time-series is:
(0.001 (Ux Uy Uz))
(0.0011 (0.0100075 0 0))
(0.0012 (0.0100089 0 0))
(0.0013 (0.0100105 0 0))
(0.0014 (0.0100121 0 0))
|Thread||Thread Starter||Forum||Replies||Last Post|
|Axis Boundary Condition..what is it?||CFDtoy||FLUENT||6||February 13, 2007 06:51|
|How to set boundary condition in Fluent for the fo||Peiyong||FLUENT||1||November 10, 2006 12:44|
|pressure boundary condition in fractional step||Jean-François Corbett||Main CFD Forum||3||January 10, 2006 09:49|
|1 and 2 Order Boundary condition at the same place||CFD_Flo||Main CFD Forum||4||July 11, 2005 11:57|
|How to resolve boundary condition problem?||sam||FLUENT||2||July 20, 2003 02:19|