IMECH-IR  > 流固耦合系统力学重点实验室
A study on the collapse of cavitation bubbles surrounding the underwater-launched projectile and its fluid-structure coupling effects
Wang YW(王一伟); Liao LJ(廖丽涓); Du TZ(杜特专); Huang CG(黄晨光); Liu YB(刘玉标); Fang X(方新); Liang NG(梁乃刚); Huang, CG (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Source PublicationOcean Engineering
2014-07-01
Volume84Pages:228-236
ISSN0029-8018
Abstract

unsteady cavitating flows surrounding the projectile during the underwater launch process are numerically and experimentally analyzed to investigate the collapse mechanism of the cavitating bubbles and its coupling effect with the vibration of the structure. We have examined the evolution of unsteady cavitation around the shoulder and tail of a rigid projectile when it is vertically launched. Navier-Stokes equations are solved with a mass transfer cavitation model using multi-block sliding mesh. Numerical results of the surface pressure change and the fluctuation in the exit-water phase have a fair agreement with the experimental data. The mechanism for the occurrence and evolution of cavitation collapse is investigated through flow field analysis. The generation of collapse pressure is simplified as the water layer accelerating and impacting the wall, and a physical model is established. In addition, from the dimensional analysis we observed that the bending fracture is the major potential damage form of structure, and the natural frequency of structure is a key factor to the coupling effect. Finally, a simplified process of the projectile with initial traverse velocity is studied by a fluid-structure interaction approach. The results demonstrate that the coupling effect between vibration deformation and collapse pressure is significant to enlarge the vibration amplitude. (C) 2014 Elsevier Ltd. All rights reserved.

KeywordCavitating Flow Collapse Coupling Effect Numerical Simulation Underwater Launch
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000338004800023
Funding OrganizationThis work is supported by National Natural Science Foundation of China (Grant No. 11202215 and Grant No. 11332011).
DepartmentLMFS冲击与耦合效应(LHO)
Classification一类
Ranking1
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49036
Collection流固耦合系统力学重点实验室
Corresponding AuthorHuang, CG (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wang YW,Liao LJ,Du TZ,et al. A study on the collapse of cavitation bubbles surrounding the underwater-launched projectile and its fluid-structure coupling effects[J]. Ocean Engineering,2014,84:228-236.
APA Wang YW.,Liao LJ.,Du TZ.,Huang CG.,Liu YB.,...&Huang, CG .(2014).A study on the collapse of cavitation bubbles surrounding the underwater-launched projectile and its fluid-structure coupling effects.Ocean Engineering,84,228-236.
MLA Wang YW,et al."A study on the collapse of cavitation bubbles surrounding the underwater-launched projectile and its fluid-structure coupling effects".Ocean Engineering 84(2014):228-236.
Files in This Item: Download All
File Name/Size DocType Version Access License
IMCAS-J2014-183.pdf(3531KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang YW(王一伟)]'s Articles
[Liao LJ(廖丽涓)]'s Articles
[Du TZ(杜特专)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang YW(王一伟)]'s Articles
[Liao LJ(廖丽涓)]'s Articles
[Du TZ(杜特专)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang YW(王一伟)]'s Articles
[Liao LJ(廖丽涓)]'s Articles
[Du TZ(杜特专)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: IMCAS-J2014-183.pdf
Format: Adobe PDF
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.