||October 15, 2013 07:50
difficulties with fluent simulation
I'm working on simulation of flow behind ahmed body. I began my computation, but there is always the message "reversed flow on pressure outlet". I added dimension on pressur outlet but the problem still remain. I don't know if my boundary conditions (velocity inlet: 40m/s; turbulent intensity 10%; turbulence lenght scale 0.001 m; pressure outlet: gauge pressure 0 Pa; backflow turbulent intensity 10%; backflowturbulence lenght scale 0.001 m and operating conditions (gauge pressure 101325 Pa; gravity unchecked) are bad or my inializing conditions (i compute from all zone with gauge pressure equal to 0). Th turbulence model is k-epsilon realizable.
Please i need your help!!!