Computational investigation on ventilated supercavitating flows and its hydrodynamic characteristics around a high-speed underwater vehicle

Notwithstanding the effectiveness of ventilated cavitation as a safe way to accelerate and achieve natural supercavitation, detailed physics cavitating flows hydrodynamic effects on underwater vehicles have been rarely explored. The present work deals with computational investigation supercavitating around high-speed vehicle its characteristics. homogeneous mixture model is adopted for describing flow field composed water, water vapor, gas. After extensively validating solver experiments flows, we carry out series computations four control fins, investigate vehicle’s are performed under different freestream velocities, ventilation rates, angles attack. Furthermore, unsteady turbulence examined by comparing computed results based Reynolds-Averaged Navier–Stokes (URANS) simulation Detached Eddy Simulation (DES). show that cause substantial nonlinear characteristics in cavity shapes forces such lift, drag, pitching moment, due presence cavitations their interaction. This can be beneficially exploited understanding predicting vehicle, establishing an accurate dynamic motion.