Numerical Simulation of Cavitation and Hydrodynamic Characteristics of Supercavitating Projectiles in the Shear Flow

Abstract To investigate the cavitation and hydrodynamic characteristics of supercavitating projectiles in shear flow, Mixture multiphase Schnerr-Sauer models are employed to simulate underwater projectiles. The inflow average velocity is 600 m/s, rates range from 0 7500 s −1 . In uniform supercavity enveloping vertically symmetrical. drag dominated by pressure drag, lift coefficient 0. However, asymmetric which deviates towards low-speed side This because flow around runs faster on high-speed side, vortices entrain more fluid side. Thus, suffer normal stress orientating turns negative. When rate further increases, projectile shoulder contacts water viscosity enhanced, resulting significant augmentation coefficient. As strongly larger than saturated vapor component acts intensely projectiles, decreased.