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libia87

March 30, 2012 05:51

UDF derivative

Hi!

how can i write dC/dx in a UDF?? because Fluent don't recognise dCdx, says that is an undeclared variable.

C its concentration

Thanks!

chenxizh

April 22, 2012 03:43

may be you can difine a uds to store the C , get the dC/dx by use C_UDSIG()[0]

Quote:

Originally Posted by libia87 (Post 352304)

Hi!

how can i write dC/dx in a UDF?? because Fluent don't recognise dCdx, says that is an undeclared variable.

C its concentration

Thanks!

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