Numerical simulation of cavitating flow around a slender body with slip boundary condition

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• 作者：Hao Liu ; DanDan Li ; YaHui Xue ; PengYu Lü…
• 关键词：cavitating flow ; slender body ; slip boundary condition
• 刊名：SCIENCE CHINA Physics, Mechanics & Astronomy
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：59
• 期：2
• 全文大小：1,142 KB
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• 作者单位：Hao Liu (1)
  DanDan Li (1)
  YaHui Xue (1)
  PengYu Lü (1)
  YiPeng Shi (1) (2)
  HuiLing Duan (1) (2)
  
  1. State Key Laboratory for Turbulence and Complex Systems, Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, 100871, China
  2. Center for Applied Physics and Technology, Key Laboratory of High Energy Density Physics Simulation, Inertial Fusion Sciences and Applications, Collaborative Innovation Center of MoE, Peking University, Beijing, 100871, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Chinese Library of Science
  Mechanics, Fluids and Thermodynamics
  Physics
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1927

文摘

In this paper, we perform a numerical simulation of the cavitating flow around an underwater hemispherical-head slender body running at a high speed. For the first time, the slip boundary condition is introduced into this problem, and we find that the slip boundary condition has a big influence on the cavitation in the flow-separation zone. By simulating the cavitating flow under different cavitation numbers, we demonstrate that the slip boundary condition can effectively reduce the intensity of cavitation, as represented by the length of cavitation bubbles. The present paper provides a new method for utilization of new surface materials to control the cavitation on the underwater moving objects.