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runtime averaging along homogenous directions |
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May 17, 2016, 06:06 |
runtime averaging along homogenous directions
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#1 |
New Member
Joao Bettencourt
Join Date: Feb 2016
Posts: 4
Rep Power: 10 |
Dear all,
I am simulating DNS of channel flow where the x and y direction have periodic BC. I want to compute a profile in z (the non-homogenous direction) of the fluctuating velocity components. To do this I need to average the velocity components at each z=constant level of my structured mesh. I have searched the OpenFOAM literature and forums and found only approximate solutions. I could use a sampling function object but my problem is how to specify that, at each time step, the function object must sample at several planes along the z direction? |
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June 8, 2016, 05:01 |
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#2 |
Senior Member
Agustín Villa
Join Date: Apr 2013
Location: Alcorcón
Posts: 313
Rep Power: 14 |
Hello Joao
In this thread a sample utility is presented http://www.cfd-online.com/Forums/ope...average-3.html where a plane is obtained by averaging in one direction. But, if you only want to have a profile (i.e. a line), you should use this application: https://github.com/OpenFOAM/OpenFOAM...us/postChannel If there is any possibility to do this during the runtime, I have no idea, but I would like to know I hope it was helpful! |
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