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UDF and PDF species mass fractions

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Old   July 18, 2003, 09:04
Default UDF and PDF species mass fractions
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Ale
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Hi to all!

I would like to access in a UDF the values of species mass fractions, to compute the molecular viscosity and thermal conductivity of the mixture (I'm not solving the species transport equations, since I'm using the PDF approach, so that the species are evaluated by a look-up table computed by PREPDF).

How can I do that? I tried to use C_YI(c,t,i), but I received an ACCESS VIOLATION error message.

Any clue?

Thanks a lot in advance!
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