I have a big problem at the DPM
I am gonna write a Udf about the DPM.
I must write a udf that particle can trap or reflect .
on the other hand if shear stress on the wall be greater than critical
stress, particle reflect else particle be trap.
I work on this problem about two month but I dont solve it.
I use of swich commend on the Udf but when I use it , it inacvtive at the Boundary condition at the fluent.
I dont have any solotion.
please help me.
All The Best.
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