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Forum: Fluent UDF and Scheme Programming

December 6, 2020, 02:52

Replies: 5

Understanding mathematics of DEFINE_VR_RATE UDF

Views: 742

Posted By pakk

Then look in the manual. Wk and yk are the fifth...

Then look in the manual. Wk and yk are the fifth and sixth argument of the macro.

Above the example, the arguments are explained. The fifth and sixth are mw and yi. So read what they mean.

Forum: Fluent UDF and Scheme Programming

December 5, 2020, 14:03

Replies: 5

Understanding mathematics of DEFINE_VR_RATE UDF

Views: 742

Posted By pakk

I guess prod is the product of the...

I guess prod is the product of the concentrations, used in the usual reaction rate equations.

But why this UDF? Is it from the manual? Where did you find it?

Forum: Fluent UDF and Scheme Programming

December 5, 2020, 09:19

Replies: 5

Understanding mathematics of DEFINE_VR_RATE UDF

Views: 742

Posted By pakk

What it is calculating: the code has a comment ...

What it is calculating: the code has a comment
* Calculate Arrhenius reaction rate *
So, that is probably what it is calculating. It is a loop because every reactant has a different rate.

Why,...

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