3D Cavitation Shedding Dynamics: Cavitation Flow-Fluid Vortex Formation Interaction in a Hydrodynamic Torque Converter

Recent experiments have shown interactions between the cavitation and fluid vortex formation in a hydrodynamic torque converter. This study aimed to clarify unsteady trigger mechanism flow-induced vibration caused by turbulence–cavitation interactions. The mass transfer model modified Reynolds-averaged Navier–Stokes k–ω were used with local density correction for turbulent eddy viscosity investigate structure converter under various operating conditions. results then validated against test data. multi-block structured gridding technique was develop an orthogonally grid of three-dimensional full-flow passage as alternative analysis method flow. indicated that re-entrant jet is main cause shedding breaking O-type cavitation. driven reverse pressure gradient move upstream towards stator nose, it lifts splits attached cavitation, which periodically induces When considered, prediction error capacity constant reduced from 13.23% <5%. work provides insight into cavitation–vortex converter, can be improve accuracy performance.