A study on the collapse of cavitation bubbles surrounding the underwater-launched projectile and its fluid-structure coupling effects
文献类型：期刊论文
| 作者 | Wang YW(王一伟); Liao LJ(廖丽娟); Du TZ(杜特专); Huang CG(黄晨光); Liu YB(刘玉标); Fang X(方新); Liang NG(梁乃刚); Fang X(方新) ; Liang NG(梁乃刚); Liao LJ(廖丽涓)
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| 刊名 | Ocean Engineering
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| 出版日期 | 2014-07-01 |
| 卷号 | 84页码:228-236 |
| 通讯作者邮箱 | huangcg@imech.ac.cn |
| ISSN号 | 0029-8018 |
| 关键词 | Cavitating flow Collapse Coupling effect Numerical simulation Underwater launch |
| 通讯作者 | Huang, CG (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China. |
| 产权排序 | [Wang, Yiwei; Liao, Lijuan; Du, Tezhuan; Huang, Chenguang; Liu, Yubiao] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; [Fang, Xin; Liang, Naigang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 中文摘要 | 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. |
| 分类号 | 一类 |
| 资助信息 | This work is supported by National Natural Science Foundation of China (Grant No. 11202215 and Grant No. 11332011). |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1016/j.oceaneng.2014.04.014 |
| 语种 | 英语 |
| WOS记录号 | WOS:000338004800023 |
| 公开日期 | 2014-09-03 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49036]  |
| 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 | 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 | 王一伟.,廖丽娟.,杜特专.,黄晨光.,刘玉标.,...&Liu YB.(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 | 王一伟,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. |
入库方式： OAI收割
来源：力学研究所
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