Numerical analysis of the interactions of sheet cavitation and cloud cavitation around a hydrofoil

被引：0
|
作者：
Pan, D. Z. [1 ]
Zhang, D. S. [1 ]
Wang, H. Y. [1 ]
Shi, W. D. [1 ]
Shi, L. [1 ]
机构：
[1] Jiangsu Univ, Res Ctr Fluid Machinery Engn & Technol, Zhenjiang 212013, Peoples R China
来源：
INTERNATIONAL SYMPOSIUM OF CAVITATION AND MULTIPHASE FLOW (ISCM 2014), PTS 1-6 | 2015年 / 72卷
关键词：
SIMULATION; TURBULENCE; DYNAMICS; MODEL;
D O I：
10.1088/1757-899X/72/2/022005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Partial cavitation and cloud cavitation on NACA66(MOD) was studied based on PANS turbulence model combined with the Zwart cavitation model. The results agree well with the data from the experimental results. The existence of a kind of unsteady characteristics of cloud cavitation is analysed in details. The reasons for the inhibition mechanism of the sheet cavitation are discussed. Pressure shock wave occurs near the tailing edge of the hydrofoil when the collapse of cloud is so large leading to great influence on the cavity closed to the leading edge. The evolution of the pressure peak and its propagation toward the leading edge were investigated through the study of the time domain signal of the monitor points along the streamline of flow. Finally, the propagation of the pressure wave on the suction side was further investigated through analysing the spatial-time history of wall pressure.
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页数：7
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