计算物理 ›› 2014, Vol. 31 ›› Issue (1): 27-32.

• 论文 • 上一篇    下一篇

SPH在水下高速物体空泡发展模拟中的应用

郑俊1,2, 于开平2, 王军锋1, 李昌烽1   

  1. 1. 江苏大学, 能源与动力工程学院, 镇江 212013;
    2. 哈尔滨工业大学, 航天学院, 哈尔滨 150001
  • 收稿日期:2013-03-16 修回日期:2013-06-05 出版日期:2014-01-25 发布日期:2014-01-25
  • 作者简介:郑俊(1983-),male,PH.D,lecturer,major in fiuid mechanics,multiphase flow and computational methods,E-mad:jszhengjun_fiuid@126.com
  • 基金资助:
    Supported by the Natural Science Foundation of China(51006047,10832007 and 11072091);Nature and Science Foundation of Jiangsu Province (SBK201342125)

SPH for Developing Supercavity Induced by High Speed Underwater Body

ZHENG Jun1,2, YU Kaiping2, WANG Junfeng1, LI Changfeng1   

  1. 1. School of Energy and Power Engineering, ]iangsu University, Zhenjiang 212013, China;
    2. School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
  • Received:2013-03-16 Revised:2013-06-05 Online:2014-01-25 Published:2014-01-25
  • Supported by:
    Supported by the Natural Science Foundation of China(51006047,10832007 and 11072091);Nature and Science Foundation of Jiangsu Province (SBK201342125)

摘要: 考察SPH对水下高速运动物体引起的流动的模拟,并观察空泡发展过程.将SPH计算空泡形状与Logvinovich独立膨胀原理给出的空泡形状进行比较.固体壁面条件的实施通过联合使用两种不同的虚粒子方法 (Ghost Particle Method,Dummy Particle Method)实现.

关键词: 超空泡, 自由表面流动, 发展过程, SPH

Abstract: Smoothed particle hydrodynamics (SPH) is tested for simulating flow driven by high speed underwater body (FDUB).Developing history of supercavity induced by a body is predicated by SPH.Shape of developed supercavity derived by SPH is compared with result given by principle of independence of cavity sections expansion of Logvinovich.Ghost particle method and Dummy particle method,that remedy boundary deficiency of SPH,are combined to implement wall conditions.

Key words: supercavity, free surface flow, developing history, SPH

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