RE-ENTRY JET AND SHOCK INDUCED CAVITY SHEDDING IN CLOUD CAVITATING FLOW AROUND AN AXISYMMETRIC PROJECTILE
文献类型：会议论文
| 作者 | Wang YW(王一伟) ; Ye BS; Wang JZ(王静竹); Huang CG(黄晨光)
|
| 出版日期 | 2018 |
| 会议日期 | JUL 15-20, 2018 |
| 会议地点 | Montreal, CANADA |
| 页码 | V002T16A002 |
| 英文摘要 | Shedding is one of the most important expressions of the instability of cavitating flow Most previous research works were focused on the shedding mechanism induced by the re-entry jet. Shock induced shedding on a wedge is identified recently by using time resolved X-ray densitometry which attracted lots of attention. In the present paper, cavitation dynamics around an axisymmetric body are investigated. Both shock propagation and re-entry jet as inducing factors of shedding are observed in different cycles in a single experiment. Relevant numerical simulations are carried out based on a fully compressible approach under the framework of the open-source code OpenFOAM. Numerical and experimental results agree well with each other. Results indicate shedding is induced by the reentry jet in the first cycle. Re-entry jet occurs and cut the cavity off on the should which induces the shedding of cloud cavity in the first cycle. However in the second and subsequent cycles, shocks are generated by the collapse of shedding cavities and propagate to the cavity closure and induces stronger re-entry jet. Its effect on cavity instability is indirect which still needs a strong re-entry jet as the medium media. |
| 资助机构 | National Natural Science Foundation of China [11772340, 11672315]; Youth Innovation Promotion Association CAS [2015015] |
| 会议录 | PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2018, VOL 2
 |
| 语种 | 英语 |
| ISBN号 | 978-0-7918-5156-2 |
| WOS记录号 | WOS:000457516200068 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/78565]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.{Wang, Yiwei、Ye, Bingsheng、Wang, Jingzhu、Huang, Chenguang} Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing, Peoples R China 2.{Wang, Yiwei、Ye, Bingsheng、Wang, Jingzhu、Huang, Chenguang} Univ Chinese Acad of Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang YW,Ye BS,Wang JZ,et al. RE-ENTRY JET AND SHOCK INDUCED CAVITY SHEDDING IN CLOUD CAVITATING FLOW AROUND AN AXISYMMETRIC PROJECTILE[C]. 见:. Montreal, CANADA. JUL 15-20, 2018. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。