|February 25, 2011, 09:32||
parabolicVelocity as boundary condition in OF-1.7?
Join Date: Nov 2010
Posts: 5Rep Power: 5
as to OpenFOAM version 1.5 there was a boundary condition called 'parabolicVelocity' where parabolic velocity-profiles were applied to patches.
So my question is: Is there any comparable patch-/boundarycondition that can be used?
Or: I got another computation where i can see the parabolic profile in Paraview - how can i export it and use it as inlet-BC for another case?
With best regards,
|March 1, 2011, 03:21||
Join Date: Aug 2009
Location: Boise, Idaho USA
Posts: 61Rep Power: 6
One way to create a parabolic inlet velocity profile is in the tutorials. Look through tutorials/incompressible/simpleFoam/pitzDailyExptInlet. The profile is in the constant/boundaryData/inlet directory. You set up the points file to specify points and the /0/U to set the velocity at each point. I use this method frequently - it's easy to set up. If this doesn't work, you can search the forum for velocity profiles or inlet profiles.
|March 2, 2011, 04:30||
Join Date: Apr 2009
Location: Technische Universitaet Munich - Lehrstuhl fuer Thermodynamik
Posts: 53Rep Power: 6
Another possibility is to use the groovy boundary conditions
Something like this should make the trick in 2D:
value uniform (10 0 0);
Technische Universität München
|March 20, 2012, 13:51||
Join Date: Dec 2011
Posts: 105Rep Power: 4
I have simple pipe flow case, length is 1.2 m and radius is = 0.02595 m.
I want to generate the the points file for my case. U(x) = 2U_0 [ 1 - (x/r)^2 ]
x and y varies from -0.02595 to -0.02595 and z varies from 0 to 1.2. Could you give me some suggessions about points file and velocity file in he constant/boundaryData/inlet directory.
|March 22, 2013, 11:51||
Join Date: Sep 2012
Posts: 81Rep Power: 5
Do you have any tutorial for fixing points and velocity. I am a beginner in OpenFoam who is trying to do his MS in CFD. Can you give me a few tips as i have to use 1/7th power law for turbulent flow in my pipe.
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