| EXPERIMENTAL AND NUMERICAL STUDY OF THE CLOUD CAVITATING FLOW AROUND A SLENDER CYLINDER WITH A PETALS-SHAPED SECTION | |
Wang YW(王一伟) ; Huang J(黄荐); Xu C(徐畅); Yu C(余超); Huang CG(黄晨光); Wu XC(吴小翠); Wang, YW (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China.; Wang, YW (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
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| Source Publication | PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2017, VOL 2 |
| 2017 | |
| Conference Name | ASME Fluids Engineering Division Summer Meeting |
| Conference Date | JUL 30-AUG 03, 2017 |
| Conference Place | Waikoloa, HI |
| Abstract | Three-dimensional flow structures of sheet-to-cloud transition have attracted a lot of attentions in the past years. Cloud cavitating flow around a slender cylinder with the petals shaped section was investigated by experimental and numerical methods. The experiment was performed in a launching system on the basis of the SHPB technology with a high-speed camera. The numerical method was established with large-eddy simulation (LES) and volume of fraction (VOF) approach. Numerical results agree well with experimental data. Interesting phenomena of three-dimensional evolution are observed, especially in which the U-type shedding of cavities are generated repeatedly in the channels along the inner region. Analysis of the unsteady evolution of cavitatingflow is performed, and emphasis is placed on the study of the relationship between flow structures around the ridges and channels. Results demonstrate that the pressure gradient variation in the tangential direction of the cylinder is essential for the unsteady development of the cavity including re-entry jet and local shedding. Interactions between the cavity and vortex are also analyzed, which indicates that the U-type cavity/vortex shedding is jointly induced by the re-entry jet and tangential vortex. |
| Keyword | Large-eddy Simulation Hydrofoil Propeller Surface |
| WOS ID | WOS:000417224300004 |
| Funding Organization | The authors are grateful for the support of the National Natural Science Foundation of China through grant numbers 11202215 and 11332011. This project was also supported by the Youth Innovation Promotion Association CAS (2015015). |
| ISBN | 978-0-7918-5808-0 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/72177 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Wang, YW (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China.; Wang, YW (reprint author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China. |
| Affiliation | 1.[Wang, Yiwei 2.Huang, Jian 3.Xu, Chang 4.Yu, Chao 5.Huang, Chenguang 6.Wu, Xiaocui] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China 7.[Wang, Yiwei 8.Huang, Jian 9.Xu, Chang 10.Yu, Chao 11.Huang, Chenguang 12.Wu, Xiaocui] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Wang YW,Huang J,Xu C,et al. EXPERIMENTAL AND NUMERICAL STUDY OF THE CLOUD CAVITATING FLOW AROUND A SLENDER CYLINDER WITH A PETALS-SHAPED SECTION[C]PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2017, VOL 2,2017. |
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| CPCI2017016.pdf（1600KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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