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

doi:10.1016/j.oceaneng.2019.106172

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-)

	Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system
	Huang CG(黄晨光)3 ; Wang YW(王一伟)3 ; Luo XW 1; Dai YX 2; Huang RF(黄仁芳)3
刊名	OCEAN ENGINEERING
	2019-09-01
卷号	187 页码:14
关键词	Intake duct Waterjet propulsion Multi-objective optimization
ISSN号	0029-8018
DOI	10.1016/j.oceaneng.2019.106172
通讯作者	Luo, Xianwu(luoxw@mail.tsinghua.edu.cn) ; Wang, Yiwei(wangyw@imech.ac.cn)
英文摘要	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.
分类号	一类
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]
WOS关键词	NUMERICAL FLOW ; PERFORMANCE
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:000487564700031
资助机构	National Natural Science Foundation of China ; Science and Technology on Water Jet Propulsion Laboratory ; State Key Laboratory of Hydroscience and Engineering
其他责任者	Luo, Xianwu ; Wang, Yiwei
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/80631]
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.Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R China 2.Sci & Technol Water Jet Prop Lab, Shanghai 200011, Peoples R China; 3.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 CG,Wang YW,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	黄晨光,王一伟,Luo XW,Dai YX,&黄仁芳.(2019).Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system.OCEAN ENGINEERING,187,14.
MLA	黄晨光,et al."Multi-objective optimization of the flush-type intake duct for a waterjet propulsion system".OCEAN ENGINEERING 187(2019):14.