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

IMECH-IR > 流固耦合系统力学重点实验室

	Experimental and numerical investigations into flow features in an intake duct for the waterjet propulsion under mooring conditions
	Huang RF(黄仁芳)1; Zhang, Ruizhi 2; Wang YW(王一伟)1,3 ; Luo, Xianwu 4; Zhu, Lei 5
通讯作者	Wang, Yiwei(wangyw@imech.ac.cn) ; Luo, Xianwu(luoxw@tsinghua.edu.cn)
发表期刊	ACTA MECHANICA SINICA
	2021-05-19
页码	18
ISSN	0567-7718
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.
关键词	Waterjet propulsion Particle image velocimetry (PIV) Intake duct Waterjet pump Mooring conditions
DOI	10.1007/s10409-021-01097-9
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000652093400001
关键词[WOS]	PERFORMANCE ; PUMP ; SIMULATION
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
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]
项目资助者	National Natural Science Foundation of China ; Science and Technology on Water Jet Propulsion Laboratory
论文分区	二类
力学所作者排名	1
RpAuthor	Wang, Yiwei ; Luo, Xianwu
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/86817
专题	流固耦合系统力学重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 2.Sci & Technol Water Jet Prop Lab, Shanghai 200011, Peoples R China; 3.Univ Chinese Acad Sci, Coll Engn Sci, Beijing 100049, Peoples R China; 4.Tsinghua Univ, Dept Energy & Power Engn, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China; 5.China Inst Water Resources & Hydropower Res, Beijing 100038, 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.

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