The investigation on the flow characteristics during the continuous development of the tip leakage vortex cavitation in an axial pump-jet propulsion

doi:10.1063/5.0204002

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-)

	The investigation on the flow characteristics during the continuous development of the tip leakage vortex cavitation in an axial pump-jet propulsion
	Xu, Shun; Xiong, Yongliang; Tang, Fangping; Li, Guibin; Long, Xinping; Ji, Bin; Huang RF(黄仁芳)
刊名	PHYSICS OF FLUIDS
	2024-05-01
卷号	36 期号:5 页码:20
ISSN号	1070-6631
DOI	10.1063/5.0204002
通讯作者	Xiong, Yongliang(xylcfd@hust.edu.cn)
英文摘要	The continuous deterioration and development of tip leakage vortex (TLV) cavitation in the pump-jet propulsion significantly affect propulsion performance and operational stability. Larger eddy simulation and cavitation tunnel experiment are utilized to investigate the temporal and spatial evolution characteristics of TLV cavitation under varying cavitation conditions. The results reveal that the continuous development of TLV cavitation prompts the TLV to gradually move away from the blade suction surface due to increasing pressure difference at the blade tip surface. Furthermore, the development of TLV cavitation amplifies the effect of the radial outward Coriolis force and makes the TLV even more unstable. Under the influence of the tip leakage flow, primary generation of turbulent kinetic energy (TKE) persistently migrates to the TLV core center and subsequently travels downstream. Despite the large magnitude of TKE that occurs at the TLV core center, the TKE generation remains low. With the inception of TLV cavitation, the transport of TKE between the TLV core center and the surrounding flow gradually intensifies, followed by a subsequent weakening of this transport effect. It increases again as the breakdown of TLV becomes more severe.
分类号	一类/力学重要期刊
资助项目	National Natural Science Foundation of China10.13039/501100001809[11872187] ; National Natural Science Foundation of China10.13039/501100001809[12072125] ; National Natural Science Foundation of China (NSFC)[ECHEAP009] ; Yangzhou University
WOS关键词	LARGE-EDDY SIMULATION ; NUMERICAL-SIMULATION ; PART II ; TURBULENCE ; EMPHASIS ; TURBINES ; PHYSICS
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:001231999800024
资助机构	National Natural Science Foundation of China10.13039/501100001809 ; National Natural Science Foundation of China (NSFC) ; Yangzhou University
其他责任者	Xiong, Yongliang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/95623]
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	Xu, Shun,Xiong, Yongliang,Tang, Fangping,et al. The investigation on the flow characteristics during the continuous development of the tip leakage vortex cavitation in an axial pump-jet propulsion[J]. PHYSICS OF FLUIDS,2024,36(5):20.
APA	Xu, Shun.,Xiong, Yongliang.,Tang, Fangping.,Li, Guibin.,Long, Xinping.,...&黄仁芳.(2024).The investigation on the flow characteristics during the continuous development of the tip leakage vortex cavitation in an axial pump-jet propulsion.PHYSICS OF FLUIDS,36(5),20.
MLA	Xu, Shun,et al."The investigation on the flow characteristics during the continuous development of the tip leakage vortex cavitation in an axial pump-jet propulsion".PHYSICS OF FLUIDS 36.5(2024):20.