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Field averaging in a certain time interval

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Old   December 9, 2009, 06:59
Default Field averaging in a certain time interval
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Greetings.

As a quite new OpenFOAM user I am on a task to simulate turbulent round jets, for which I am using LES with dynamic Smagorinsky model.

My question is about the sampling of the turbulent data. I could not find how field averages for a certain time interval are done. As expected, I would like to collect statistics after the jet develops entirely into the region, i.e. not starting from the first time step.

Any helps will be appreciated.
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Old   December 11, 2009, 06:39
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Maybe giving an example would help to gather some information.

I want to study Umean between times 200-500 for example, since the interval 0-200 is reserved for the developing of the flow. As far as I can see OpenFOAM does the averaging only for the time interval 0-500, as the averaging starts from the first time step and ends with the final time step.

Anyone knows a solution? Do I need to implement new code?
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