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How to calculate divergence of a field in CFD-post

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Old   December 22, 2017, 13:31
Question How to calculate divergence of a field in CFD-post
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Shafa HN
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I want to calculate the conservation equation of Entropy field, in order to find the point of entropy generation (sources of entropy). In order to do that, I need calculate Divergence of entropy transportation field.

Is there any reasonable way to calculate divergence (generally, differentiation operation in vector field) of the field in CFD-Post and CCL/CEL? Is it possible, or it must be done in Solver phase by adding new variables?

I really appreciate your comments.
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Old   December 22, 2017, 17:15
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Glenn Horrocks
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Have a look in the CFX reference guide for available CEL operations. For instance u.grad x gives you the x gradient of the u velocity field.
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