Abstract
Based on a suite of computational fluid dynamics code, the pulsation characteristics are studied for turbulent supercavitating flows over a 2D base-vented symmetric hydrofoil using a pressure-based Navier-Stokes solver coupled with a phase mass fraction transport cavitation model and local linear low-Reynolds-number κ-ɛ turbulence model. It is found that there exists a critical air supply flow under certain inflow condition. When the gas supply flow exceeds the critical value, the cavity begins to pulsate. Pulsating cavity has a visually wavy surface, and air leakage shows as a mass of air-water mixture detaching from the rear part of the cavity periodically.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
