Hello. I'm modeling above. the object is fluid domain. and also the specific figures are that whole diameter is 600mm ,  small diameter is 200mm and inlet diameter is 10mm. depth is 2mm.  outlet boundary is the outer edge of a circle. In addition, I set up rotation condition at model bottom. after solver setup, I have error named " reversed flow in faces on pressure-outlet " in solver. how can I solve the problem?  should I extend inlet upward?