Cavitation in a Jet : Discrete-Vortex Simulation of a Two-Dimensional Turbulent Jet

Abstract

A discrete-vortex method is used to simulate a two-dimensional turbulent free jet. The analysis is made to predict the mean pressure and the rms of the fluctuating pressure distributions in the flow field and trajectories and pressure histories of fluid particles which imitate cavitation nuclei. It is found that the fluid particles released from a point near the jet exit corner experience minimum pressure in a region beyond the potential core of the jet or in the shear layer within the flow-establishment zone.