哈尔滨工程大学学报2012，Vol.33Issue(6)：684-689,6.DOI:10.3969/j.issn.1006-7043.201105026
圆柱体出筒过程头型对流体动力的影响
Numerical investigation on the hydrodynamic characteristics of a cylinder of different head construction out of launch tube
摘要
Abstract
The effects of the head-form on the hydrodynamic characteristics during the launching of underwater vehicles out of a vertical tube were numerically solved by combining the mixture model, Singhal cavitation model, and standard k-ε turbulence model into the Reynolds-averaged Navier-Stokes ( RANS) equations under the dynamic mesh system, and the solutions of the interaction of the dynamic boundary conditions of the cylinder and environmental fluid were obtained. The axial symmetric gravity flow field and hydrodynamic characteristics of the underwater cylinder were derived by using numerical simulation. Simulation and analysis results show that different head construction affects the trajectory of the underwater cylinder and hydrodynamic load. The volatility reason of differential pressure coefficients and viscous force coefficients as well as toll force coefficients were derived by analyzing simulation results. Water trajectory and hydrodynamic force of the #3 model are relatively stable in the process of launching from the tube, which may give it various engineering applications.关键词
流体力学/多相流/流体动力特性/动网格/空化Key words
fluid mechanics/ multiphase flow/ hydrodynamic characteristics/ dynamic mesh/ cavitation分类
数理科学引用本文复制引用
刘海军,王聪,邹振祝,王本利,王柏秋..圆柱体出筒过程头型对流体动力的影响[J].哈尔滨工程大学学报,2012,33(6):684-689,6.基金项目
国家自然科学基金资助项目(10802026). （10802026）
