A numerical model for evolution of internal structure of cloud cavitation
文献类型：会议论文
| 作者 | Du TZ(杜特专) ; Huang CG(黄晨光); Wang YW(王一伟)
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| 出版日期 | 2019 |
| 会议日期 | April 10, 2016 - April 15, 2016 |
| 会议地点 | Honolulu, HI, United states |
| 关键词 | Bubble break up Bubble clusters Bubble number densities Cloud cavitations Condensation rates Dimension analysis Evolution modeling Reynolds Averaged Navier Stokes Equations |
| 英文摘要 | Interaction between bubbles in cloud cavitation play an important role in cavitating flows. A numerical model was developed to study the internal structure and collapse of cloud cavitation. The model consists of: (1) an evolution model of bubble number density taking bubble breakup effects into account; (2) a modified cavitation model based on dynamics of bubble cluster; and (3) the multi-phase Reynolds Averaged Navier-Stokes equations (RANS) for background flow. The evolution model of bubble number density is governed by a transport type equation and the expression of source term is derived from a bubble breakup model. The condensation rate is constructed through dimension analysis and direct simulation of collapse of bubble cluster. The proposed model was tested by flows over a projectile. The results show that the evolution of internal structure of the cloud cavitation is closely related to the development of re-entrant jet. Moreover, the performance of proposed model and the effects of bubble number density on cavitating flows are discussed. © Open Archives of the 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC 2016. All rights reserved. |
| 会议录 | Open Archives of the 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC 2016
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| 语种 | 英语 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/80466]  |
| 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 | Institute of Mechanics, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Du TZ,Huang CG,Wang YW. A numerical model for evolution of internal structure of cloud cavitation[C]. 见:. Honolulu, HI, United states. April 10, 2016 - April 15, 2016. |
入库方式： OAI收割
来源：力学研究所
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