|November 5, 2009, 06:47||
nonuniform boundary condition( U=f(y) ) ?
Join Date: Oct 2009
Posts: 186Rep Power: 7
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: 37Rep Power: 8
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: 8
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))
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