Ansys Employee

Check these:

(1) Is the calculation implicit or explicit ?

(2) Did you change operating density from default ?

(3) Are you considering surface tension ?

(4) Is the gravity direction set properly ?

(5) Is the volume fraction at the boundaries (also backflow VF at outlets) set properly ?

(6) Which p-v scheme you are using ?

(7) What time step size have you set ?

(8) Have you checked the patched domain before calculation ?

(9) Did you change the advanced stability controls (velocity limiting etc) ?

(10) And finally, are you trying to simulate something unphysical ?

Also these might help: User's guide ; Theory guide