Semi-Permeable Plane

I want to add a semi-permeable plane to a simple cylindrical geometry. Every time that I try inserting a semi-permeable plane at the specified outlet an error reads:
“ERROR des\stl_preproc_des_mod.f:715
Error 1000: DES simulations do not support the
specified IS TYPE:
IS: 1
IS_TYPE=SEMIPERMEABLE”
Attached is the simulation file.
BiomassReal.mfx (15.3 KB)

Is that you want to let the gas leave the domain, while prevent the solid particles exit from the PO? If so, you can do it alternatively by adding a keyword: bc_po_apply_to_des(2)= .false.


bc_po_apply_to_des2

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