hi,

i have a problem with udf: define_heat_flux i want to modify the heat transfer coefficient for every wall in my 3d problem.

the define_heat_flux must be activated in "function hooks".

if i modify the cid[], it is applied for all walls!

how can i change cid[] for different walls, so that every wall has a different cid[]?

thanks for your help, martin

thanks for your help, i solved the problem on my own...