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September 16, 2019, 18:20 |
Reynolds Stresses' Gradients
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#1 |
Member
Farzin
Join Date: Jul 2014
Posts: 42
Rep Power: 12 |
Dear all,
While it is possible to access Reynolds Stresses C_RUU(c,t), C_RUV(c,t), ... when writing a UDF, the documentation is not clear on how we may access the gradients of RS components and the common gradient form (C_RUU_G(c,t)[0],...) does not work. There is an undocumented array "C_RST_G(c,t,i)" which does not work as well. I am wondeing if RS gradients are stored at all. I would appreciate any help on this. Thanks, Farzin Related Topic: https://studentcommunity.ansys.com/t...ostbadges=true |
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September 21, 2019, 07:10 |
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#2 |
Senior Member
Join Date: Nov 2013
Posts: 1,965
Rep Power: 27 |
The code "C_RUU_G(c,t)[0]" is conceptually a good idea, but is not correct grammar in the version of c that fluent uses. In newer versions it should (I think) work, so your attempt is not so crazy.
What to do: use a temporary intermediate variable : Code:
float temp[ND_ND]; temp = C_RUU_G(c, t); Whatever = temp[0] ; |
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Tags |
reynolds stress, rsm, turbulence, udf |
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