[aseemd]

The inlet and exit pressure is of the order 24,000 pascal. The pressure over the blade surface (NACA 66) drops to 1500 pascal which is well below the vapour pressure. However, since the inlet pressure is greater than the vapour pressure, both cavitation models in Fluent (Gerber and schner) predict rapid bubble collapse . The vapour fraction drops to zero very quickly after the inlet and does not rise near the blade surface.
In reality the non-condensable gas prevents collapse of the bubble and infact the bubble enters the domian at equillibrium.

Is there a way to avoid this erroneous prediction of rapid bubble collapse near the inlet ?

Any help would be appreciated