Re theta in trans SST
 

Hello! I'd like to define transition sst model and need to write a udf (an example is presented). But how can one calculate Re_theta? What params are crucial when choosibg this magnitude? TNX IN ADVANCE.

Hello,

Have you (or anyone else) figured out how to do this?

for RHO_inf and U_inf , you can create a report definition that gets the mass average velocity away from your wall.

Then you need an outer loop over your threads, and inner loop over the cells to do the integration and calculate theta.