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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Problem with non-thermal equilibrium for porous medium › Reply To: Problem with non-thermal equilibrium for porous medium

August 7, 2024 at 10:03 am
Rob
Forum Moderator

The sign on interior faces isn't generally useful as it's linked to the face normal: that's not far off random on an interior and may not even be the same over the whole surface!  If you switched on the "physical velocity" options turn them off. They're supposed to mimic flow acceleration but never seem to give a good result. 

Did you use standard or hybrid initialisation?