Conditions to be applied in vof csf bubble rising simulations in fluent
 

Conditions to be applied in vof csf bubble rising simulations in fluent

I have tried this simulation without including csf and results go hand in hand with some research papers.
But when I include csf and checking with implicit, explicit and with various slope delimiters(beta value)
along with zonal discretization the bubbles diffuse or go down instead of rising up and the continuity
residuals are only of order 1e-1 or it diverges.

regards

manoj