Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions

doi:10.1007/s10409-021-01097-9

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 investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions
	Huang RF(黄仁芳)5; Zhang, Ruizhi 4; Wang YW(王一伟)3,5; Luo, Xianwu 2; Zhu, Lei 1
刊名	ACTA MECHANICA SINICA
	2021-05-19
页码	18
关键词	Waterjet propulsion Particle image velocimetry (PIV) Intake duct Waterjet pump Mooring conditions
ISSN号	0567-7718
DOI	10.1007/s10409-021-01097-9
通讯作者	Wang, Yiwei(wangyw@imech.ac.cn) ; Luo, Xianwu(luoxw@tsinghua.edu.cn)
英文摘要	The waterjet propulsion is widely applied in the marine vessels over 30 knots, and the intake duct is considered as an essential component that strongly relates to the propulsion performance. This paper sheds light on the flow features inside an intake duct under mooring conditions by using the particle image velocimetry (PIV) technique with three-dimensional (3D) numerical simulations. The hydraulic loss gradually increase as the flow-rate increases. According to analyses via the Bernoulli equation, the hydraulic loss is composed of the frictional head loss (h(f) similar to V-1.75) and the local head loss (h(j) similar to V-2.0). A recirculation region is observed near the duct lower wall with a high-velocity flow near the upper wall, and subsequently a shear flow presents in the horizontal straight pipe with an obvious velocity gradient. Three-dimensional simulations demonstrate that the vortex pair is very strong in the recirculation region and then it gradually decreases as the fluid flows downstream. With the flow-rate increasing, the non-uniformity at the duct outlet firstly increases to a peak and then slightly decreases, while the perpendicularity at the duct outlet dramatically decreases to a minimum and then increases. This work not only reveals some physics of the waterjet propulsion under mooring conditions, but also promotes its efficient operation.
分类号	二类
资助项目	National Natural Science Foundation of China[52006232] ; National Natural Science Foundation of China[11772340] ; Science and Technology on Water Jet Propulsion Laboratory[6142223190101]
WOS关键词	PERFORMANCE ; PUMP ; SIMULATION
WOS研究方向	Engineering ; Mechanics
语种	英语
WOS记录号	WOS:000652093400001
资助机构	National Natural Science Foundation of China ; Science and Technology on Water Jet Propulsion Laboratory
其他责任者	Wang, Yiwei ; Luo, Xianwu
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/86816]
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.China Inst Water Resources & Hydropower Res, Beijing 100038, Peoples R China 2.Tsinghua Univ, Dept Energy & Power Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; 3.Univ Chinese Acad Sci, Coll Engn Sci, Beijing 100049, Peoples R China; 4.Sci & Technol Water Jet Prop Lab, Shanghai 200011, Peoples R China; 5.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China;
推荐引用方式 GB/T 7714	Huang RF,Zhang, Ruizhi,Wang YW,et al. Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions[J]. ACTA MECHANICA SINICA,2021:18.
APA	黄仁芳,Zhang, Ruizhi,王一伟,Luo, Xianwu,&Zhu, Lei.(2021).Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions.ACTA MECHANICA SINICA,18.
MLA	黄仁芳,et al."Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions".ACTA MECHANICA SINICA (2021):18.