EXPERIMENTAL AND NUMERICAL STUDY OF THE CLOUD CAVITATING FLOW AROUND A SLENDER CYLINDER WITH A PETALS-SHAPED SECTION

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	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.
	2017
会议日期	JUL 30-AUG 03, 2017
会议地点	Waikoloa, HI
关键词	Large-eddy Simulation Hydrofoil Propeller Surface
英文摘要	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.
会议录	PROCEEDINGS OF THE ASME FLUIDS ENGINEERING DIVISION SUMMER MEETING, 2017, VOL 2
资助机构	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).
会议录出版者	AMER SOC MECHANICAL ENGINEERS
会议录出版地	NEW YORK
语种	英语
ISBN号	978-0-7918-5808-0
WOS记录号	WOS:000417224300004
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/72177]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	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.
作者单位	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
推荐引用方式 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]. 见:. Waikoloa, HI. JUL 30-AUG 03, 2017.