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How to constrain R tensor in RSM models?

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Old   December 6, 2023, 05:27
Default How to constrain R tensor in RSM models?
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Dear Foamers,

I am trying to run simulations with Reynolds stress models such as SSG and LRR, using interfoam. However, it seems that the modelled R stress tensor can sometimes vary a lot and cause stability issues. Thus I would like to constrain the R tensor.

For that I wonder if it would be possible to add some constrains in fvOptions or do I have to edit the source code? Any hints would be appreciated, thank you for your time in advance.
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fvoptions, interfoam diverging, ssg model

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