[ebtedaei]

Hi,
I'm running a multi-phase flow of water and air mixture in a cyclone by VOF model.
The low-pressure region inside the cyclone is created and air as backflow enters from cyclone's apex but air core diameter is greater than apex diameter (attached image) !!! why???

The water velocity from inlet is 14 m/s while the air velocity from apex is 50 m/s !!! I think maybe it's because of the high air velocity.

Please help me to solve it.

Thanks in advance

[AlexanderZ]

show your mesh, may be your mesh is rough
in contours switch off Node Values option

best regards

[ebtedaei]

I have changed the mesh to finer mesh before, but the contour has not changed !!!

Node values was also switched off but the contour was not changed !!! (attached image)

I can send the case settings to you. Please tell me your comments.

Thanks