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UDF mixture fraction gradient

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Old   August 9, 2017, 05:49
Default UDF mixture fraction gradient
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Hello, everyone!

I am writing an UDF to calculated the turbulent Schmidt number based on flow variables and thus not use a constant one for my simulation. But the problem which I am experiencing is that I need the mixture/mass fraction gradient for the last step of my calculations.

Is there a way in which I can access this values or calculate them? I tried using the cell macro C_YI_G(c,t), but it is aplicable only for density-based solvers and mine is pressure-based.

Thanks in advance!
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