SPH在水下高速物体空泡发展模拟中的应用（英文）  

SPH for Developing Supercavity Induced by High Speed Underwater Body

作　　者：郑俊[1,2] 于开平[2] 王军锋[1] 李昌烽[1] 

机构地区：[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

出　　处：《计算物理》2014年第1期27-32,共6页Chinese Journal of Computational Physics

基　　金：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.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.

关 键 词：超空泡 自由表面流动 发展过程 SPH 

分 类 号：O351.2[理学—流体力学]