Assessment of Erosion Sensitive Areas via Compressible Simulation of Unsteady Cavitating Flows

摘要: The objective of this paper is the assessment numerical predictability erosive events arising in cavitating flows. First, a method and an efficient thermodynamic model for simulation flows are briefly described. prediction typical flow details evaluated by simulating 3-D around quasi 2-D NACA hydrofoil. We find that maximum length attached cavity, Strouhal number, average diameter detached clouds essentially grid independent. Scale enrichment enhanced observed on refined grids. Even delicate features, such as vortices irregular break-up patterns, reproduced, provided spatial resolution sufficiently high. cloud collapses resulting instantaneous peak pressures assessed second investigation. Here, we analyze effect computational with respect to collapse characteristics, duration, pressure within field at walls. proposed methodology confirmed third investigation, where experimental setup investigate cavitation erosion simulated, regions experimentally damage compared predictions strong collapses. excellent agreement numerically predicted positions justifies methodology.