Reversed flow in XXX faces on pressure-outlet XX
 

Hi all,

I'm working with granular material flow and each injection of the particles Scaled Residuals exhibit the behavior of Fig. I'm getting the message "Reversed flow in XXX faces on pressure-outlet XX" when run solver. I've changed the solution methods between Quick, First and Second Order, but the only one that can run is Quick. In other methods the solution does not converge. If someone could help me be grateful.