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OpenFOAM LES: Averaging Velcoity

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Old   April 18, 2011, 08:30
Default OpenFOAM LES: Averaging Velcoity
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Hi,

In Openfoam for LES I know that you can implement a function in the controlDict file which calculates average velocity at each point based on all the time steps. If this is not implemented before the simulations begins, is there a way to do this now the simulation has finished ? FoamCalc perhaps?


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Old   April 19, 2011, 04:16
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Gregor Olenik
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Hi Ollie,

for run time averaging: have a look at the fieldAverage function
http://foam.sourceforge.net/doc/Doxy....html#_details
HOWTO use fieldAverage
gregor
PS: sorry i misunderstood your post. i am not aware of an existing post pro averaging tool. but writing your own shouldn't be too hard.

Last edited by gregor; April 21, 2011 at 03:32.
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Old   April 20, 2011, 07:05
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David Aljure
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Check this thread

using fieldAverage library to average postprocessing

The only problem I found with this postaverage utility is it only uses the time data you saved, opposed to the fieldaverage function in run time that uses all timestep data.
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