Numerical Simulation and Evaluation of Attached Cavitation with Different Cavitation Models

被引：0

作者：

Hou X. ^{[1
]}

Hu J. ^{[1
]}

Yu Y. ^{[1
]}

机构：

[1] School of Aerospace Engineering, Beijing Institute of Technology, Beijing

来源：

Binggong Xuebao/Acta Armamentarii | 2020年 / 41卷

关键词：

Attached cavitation; Cavitation flow; Schnerr-Sauer cavitation model; Singhal cavitation model;

D O I：

10.3969/j.issn.1000-1093.2020.S1.013

中图分类号：

学科分类号：

摘要：

In order to analyze a application of Singhal cavitation model and Schner-Sauer cavitation model in steady cavitation simulation, the steady cavitating flows over a 2D NACA0009 (MOD) hydrofoil with angle of attack of 2.5° and Re=2×106 are numerically investigated based on RANS method by Fluent 18.2. The Realizable k-ε turbenlence model and Mixture multiphase model are used for numerical simulation. The cavitation number is between 0.75 and 0.90. Simulated results of the two cavitation models were analyzed and compared with experimental data. The results show that the length of cavity increases as the cavitation number decreases, and the pressure distributions of hydrofoil leading edge simulated by the two cavitation models are significantly different. The cavitation range simulated by Singhal cavitation model is larger. On the near-wall surface and in cavity wake region, both cavitation models cannot be used to accurately capture complex flow phenomena. © 2020, Editorial Board of Acta Armamentarii. All right reserved.

引用

页码：91 / 96

页数：5

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