Learning Forum

[Chris_g]

Hi everyone,

I am trying to model particle surface reactions with custom kinetics using a DEFINE_SR_RATE UDF. However, it is unclear to me which units this UDF (or rather the solver) expects for the returned reaction rate.

From the example in the UDF Guide it seems to me as if it is kmol/m3/s while from the Theory Guide I would expect kg/s (eq. 7.73). Which are the correct units?

Thank you!

Chris

[Chris_g]

Nevermind, I just realized I need to use DEFINE_PR_RATE in this case