Insights into the characteristics of sheet/cloud cavitation and tip-leakage cavitation based on a compressible Euler-Lagrange model

Abstract

To consider fluid compressibility and multiscale features in cavitation simulations, we develop a compressible Euler-Lagrange method in OpenFOAM. Using this method, we investigate the characteristics of sheet/cloud cavitation and tip-leakage cavitation in detail. The results show that the evolution of microscopic bubbles has a great influence on the pressure fluctuations in the flow field. Furthermore, we also study the bubble size distribution and obtain two distinct power laws, namely -4/3 for small bubbles and -10/3 for large bubbles.