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calculate gradient tension in udf

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Old   January 3, 2013, 16:54
Default calculate gradient tension in udf
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Hello! I am trying to write a UDF for fluent. I want to calculate the gradient of a tension. I want to calculate ∂τ/∂x for a source term that adds to energy equation. Does anybody have any idea how can I do that. Thank you
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Old   January 5, 2013, 04:15
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There is nothing for tension. You should calculate if from velocity gradiant. You can find it in fluent manual. C_U_G(c,t)[0], C_U_G(c,t)[1], C_U_G(c,t)[2]
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