航行体出水过程头部流场载荷特性分析

尤天庆; 张嘉钟; 王聪; 曹伟

航行体出水过程头部流场载荷特性分析

哈尔滨工业大学航天学院, 哈尔滨 150001

基金项目: 国家自然科学基金资助项目(10802026); 中国博士后科学基金资助项目(20080440884)

详细信息

作者简介:
尤天庆(1984-),男,黑龙江五大连池人,博士生,ytianqing@gmail.com.

中图分类号: TJ 760.9
计量
- 文章访问数: 3473
- HTML全文浏览量: 28
- PDF下载量: 1045
- 被引次数: 0
出版历程
- 收稿日期: 2010-02-28
- 网络出版日期: 2011-05-30

Characteristic analysis of flow load around head during vehicles exit of water

School of Astronautics, Harbin Institute of Technology, Harbin 150001, China

摘要

摘要: 航行体高速出水过程中流场变化剧烈且复杂,为研究其水动力载荷变化,采用均质多相流模型及空化模型,开展了出水过程的数值模拟研究.通过数值模拟分析了不同头部形状及出水攻角对航行体出水过程流场的影响.分析结果表明:空化性能较强的头形能产生头部空泡,并在穿越水面时溃灭,引起较为强烈的流场变化并产生较高压强作用于航行体壁面.而空泡溃灭过程也会因头形的不同而略有差别.有攻角出水时空泡溃灭呈现非对称性,因此形成了较大的力矩.而力矩的变化情况也受攻角影响较大.
- 空化 /
- 出水 /
- 多相流 /
- 水下航行体
Abstract: During water-exit of underwater vehicle, the violent change of flow field is very complex. In order to investigate the variation of hydrodynamic load, the water-exit of underwater vehicles was simulated by a viscous flow solver with homogeneous multiphase flow model and cavitaion model. The effect of different head shape and pitching angle on the water-exit flow field was analyzed by the numerical method. The analysis result indicates that the head shape with stronger cavitation capability, which maintains local cavity, can cause more severe flow field change and produce massive pressure on the hull of vehicle. The result also indicates the flow field of water-exit process with pitching angle is asymmetric which forms the powerful moment applied on the vehicle. And the pitching angle has a great impact on the variation of moment.
- cavitation /
- water-exit /
- multiphase flow /
- underwater vehicles

HTML全文

参考文献(1)

[1] 颜开,王宝寿.出水空泡流动的一些研究进展 //朱德祥,周连第,刘桦,等.第二十一届全国水动力学研讨会暨第八届全国水动力学学术会议暨两岸船舶与海洋工程水动力学研讨会文集.济南:海洋出版社,2008:9-16 Yan Kai,Wang Baoshou.Some research progress of water-exit cavity //Zhu Dexiang,Zhou Liandi, Liu Hua, et al.The 21st National Conference on Hydrodynamics and 8th National Congress on Hydrodynamics and the Cross-Strait Conference on Ship and Ocean Engineering Hydrodynamics.Jinan:Oceanpress,2008:9-16 (in Chinese) [2] Moyo S,Greenhow M.Free motion of a cylinder moving below and throught a free surface[J].Applied Ocean Research,2000(22):31-44 [3] Hui Sun.A boundary element method applied to strongly nonlinear wave-body interaction problems .Trondheim: Department of Marine Technology,Norwegian University of Science and Technology,2007 [4] Knapp R T,Daily J W,Hammitt F G,et al.Cavitation [M].London:Mcgraw-Hill Book Company,1970 [5] Waugh J G,Stubstad G W.Water-exit behavior of missiles part 1.preliminary studies .AD273717,1961 [6] Liu Zhiyong,Yi Shuqun,Yan Kai,et al.Numerical simulation of water-exit cavity .CAV03-OS-7-018,2003 [7] 权晓波,李岩,魏海鹏,等.航行体出水过程空泡溃灭特性研究[J].船舶力学, 2008,4(12): 545-549 Quan Xiaobo,Li Yan,Wei Haipeng,et al.Cavitation collapse characteristic research in the out-of-water progress of underwater vehicles[J].Journal of Ship Mechanics,2008,4(12):545-549 (in Chinese) [8] Rouse H,McNown J S.Cavitation and pressure distribution,head forms at zero angle of yaw[M].Iowa City:State University of Iowa,1948

施引文献

资源附件(0)

访问统计