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航行体垂直出水载荷与空泡溃灭机理分析

文献类型:期刊论文

作者王一伟; 黄晨光; 杜特专; 方新; 梁乃刚
刊名力学学报
出版日期2012
卷号44期号:1页码:39-48
通讯作者邮箱wangyw@imech.ac.cn
关键词水下发射 空化 数值模拟 溃灭载荷
ISSN号0459-1879
其他题名MECHANISM ANALYSIS ABOUT CAVITATION COLLAPSE LOAD OF UNDERWATER VEHICLES IN A VERTICAL LAUNCHING PROCESS
产权排序中国科学院力学研究所水动力学与海洋工程重点实验室;中国科学院力学研究所非线性力学国家重点实验室
通讯作者王一伟
中文摘要针对航行体水下垂直发射出水载荷机理问题,首先开展了典型工况全过程的数值模拟,得到了航行体肩、尾空泡及表面压力的演化过程,并与试验结果进行了对比验证.在此基础上揭示了航行体肩部空泡溃灭的过程和机制,进而提出了出水溃灭压力的物理模型,探索了空泡厚度、水层厚度、声速等重要参数的影响,讨论了试验溃灭压力相似律等相关问题.
英文摘要Pressure pulses generated by cavitation collapse when vehicles launching through the free surface will form the key load which decides the strength of structures. Consequently, it is very significant to investigate the mechanism of cavitation evolution and collapse. Firstly, a typical vertical launching process was simulated, and time sequences of pressure distribution gained were verified by experimental results. Through the analysis about flow fields, mechanism for the occurrence and evolution of cavitation collapse was investigated. Furthermore, a physical model of collapse pressure was established, by which influence of important factors such as cavity thickness, thickness of water layer, sound speed were studied. Finally, relative issues about the similarity law of scaled tests and load-reduction measurements were discussed.
学科主题力学
分类号二类
收录类别EI ; CSCD
原文出处http://epub3.cnki.net/grid2008/brief/detailj.aspx?filename=LXXB20111008001&dbname=CAPJ2011
语种中文
CSCD记录号CSCD:4438116
公开日期2012-04-01
源URL[http://dspace.imech.ac.cn/handle/311007/45050]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式
GB/T 7714
王一伟,黄晨光,杜特专,等. 航行体垂直出水载荷与空泡溃灭机理分析[J]. 力学学报,2012,44(1):39-48.
APA 王一伟,黄晨光,杜特专,方新,&梁乃刚.(2012).航行体垂直出水载荷与空泡溃灭机理分析.力学学报,44(1),39-48.
MLA 王一伟,et al."航行体垂直出水载荷与空泡溃灭机理分析".力学学报 44.1(2012):39-48.

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来源:力学研究所

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