MFIX cannot calculate

[cgw]

Hi Raymond. Please provide more detail than “cannot calculate”. What behavior are you expecting and what are you seeing?

I compiled your UDF and ran the case, it runs fine for me but produces this warning message:

mfix - WARNING - velocity higher than maximum allowed velocity:   10.000    (to change this adjust the scale factor MAX_INLET_VEL_FAC)

Unfortunately, the warning message is showing up in the terminal you start MFiX from, instead of being displayed within MFiX. I will fix this.

Regarding the inlet velocity, please see this post

Problem with DT

Increase the value of MAX_INLET_VEL_FAC. It may help with intermediate velocity values that exceed the boundary value. The key is available on the Numerics pane under Advanced. You an also find it using the search feature accessed via the question mark (?).

– Charles