Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system

doi:10.1016/j.oceaneng.2019.106172

IMECH-IR > 流固耦合系统力学重点实验室

	Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system
	Huang RF(黄仁芳)1; Dai YX 2; Luo XW 3; Wang YW(王一伟)1 ; Huang CG(黄晨光)1
通讯作者	Luo, Xianwu(luoxw@mail.tsinghua.edu.cn) ; Wang, Yiwei(wangyw@imech.ac.cn)
发表期刊	OCEAN ENGINEERING
	2019-09-01
卷号	187 页码:14
ISSN	0029-8018
摘要	The intake duct is an important component of waterjet propulsion system and its hydraulic performance is directly connected with the capability of the waterjet pump and even the propulsion performance of the system. In order to optimize the flush-type intake duct, the present paper proposes a multi-objective optimization system including Design of Experiments (DOE), Computational Fluid Dynamics (CFD), three-dimensional parametric design, approximate model, the modified Non-dominated Sorting Genetic Algorithm-II (NSGA-II) and a Technique for Ordering Preferences by Similarity to Ideal Solution (TOPSIS). The nonuniformity and perpendicularity of outflow, and hydraulic efficiency for the intake duct are treated as the optimization objectives with four geometrical parameters as the design variables. Local sensitivity analyses indicate that the optimization objectives are significantly affected by the inclination angle and slightly affected by the lip vertical distance of the intake duct. During IVR = 0.3-0.8, the outflow quality and hydraulic efficiency of the optimised intake duct are greatly improved. The nonuniformity after optimization decreases by 27.8% and perpendicularity increases by 3.07% at the design condition of IVR = 0.7 and V-s = 19.49 m/s. Based on the flow at the outlet plane of intake duct, the pressure distribution after optimization is very uniform and the tangential velocity is small without obvious secondary flow. During the application to a mixed-flow waterjet propulsion system at various navigation speeds, the nonuniformity of the optimized intake duct decreases by 20.4% and perpendicularity increases by 4.11% on average, demonstrating that the optimized intake duct performs a better outflow quality. It is also noted that the non-uniform flow from the intake duct mainly affects pressure distribution on the suction surface of impeller blade and causes different shaft power.
关键词	Intake duct Waterjet propulsion Multi-objective optimization
DOI	10.1016/j.oceaneng.2019.106172
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000487564700031
关键词[WOS]	NUMERICAL FLOW ; PERFORMANCE
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
资助项目	National Natural Science Foundation of China[51776102] ; National Natural Science Foundation of China[11772340] ; Science and Technology on Water Jet Propulsion Laboratory[61422230103162223004] ; State Key Laboratory of Hydroscience and Engineering[sklhse-2017-E-02]
项目资助者	National Natural Science Foundation of China ; Science and Technology on Water Jet Propulsion Laboratory ; State Key Laboratory of Hydroscience and Engineering
论文分区	一类
力学所作者排名	1
RpAuthor	Luo, Xianwu ; Wang, Yiwei
引用统计	被引频次：34[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/311007/80631
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.Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Huang RF,Dai YX,Luo XW,et al. Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system[J]. OCEAN ENGINEERING,2019,187:14.
APA	黄仁芳,Dai YX,Luo XW,王一伟,&黄晨光.(2019).Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system.OCEAN ENGINEERING,187,14.
MLA	黄仁芳,et al."Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system".OCEAN ENGINEERING 187(2019):14.

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