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how to sample / output only certain fields openfoam

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Old   August 18, 2018, 13:18
Default how to sample / output only certain fields openfoam
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Hello all,

Is there a way to only save certain field results during a simulation?

I.e. I would only like to save P and U, and would not like to save the rest of the default parameters. It is taking too much space and I don't even need them.

Is there a way to change controlDict or any other file that would allow this?

I've seen writeRegisteredObject but not quite sure how to use it..anyone?

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Old   August 20, 2018, 17:22
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To write only a few fields, use this in the solver instead of runTime.write() and recompile :

if (runTime.write())
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controldict, openfoam, output fields, results, writeregisteredobject

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