I am trying to write dpm drag udf,but i am confusing about the return i need.Someone tell me it is Cd,however,in fluent 15 mamual,it say that "The value returned to the solver must be dimensionless and represent 18 * Cd * Re / 24".Is return value different in different fluent vision?
when i calculate drag on particle,i need the properties of gas phase(velocity,etc.).Could anyone share with me the macros i need? Or,share with me a drag udf file? Any reply will be appreciated.
Fangfang Sun
Dear Alexander,
Thank you for your advice.It helps me a lot.
I need more macros for gas properties.Could you tell me where i can find these macros? I didn't see these in udf mamuals.Thanks in advance.
Best regards.
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