Multiobjective hydraulic design and performance analysis of a vortex pump based on orthogonal tests

doi:10.1155/2021/6687856

	Multiobjective hydraulic design and performance analysis of a vortex pump based on orthogonal tests
	Quan, Hui; Wu, Yongkang; Guo, Ying; Song, Kai; Li, Yanan
刊名	Shock and Vibration
	2021
卷号	2021
关键词	Computational fluid dynamics Efficiency Flow simulation Impellers Orthogonal functions Pumps Shape optimization Testing Visualization Vortex flow Design optimization Experimental verification Hydraulic efficiency Hydraulic performance Multi-parameter optimizations Optimization computation Orthogonal test method Performance analysis
ISSN号	1070-9622
DOI	10.1155/2021/6687856
英文摘要	We design optimization on the overall blade structure of a vortex pump conducted by using the orthogonal test method to clarify the matching relationship of impeller and casing structures and then improve the hydraulic performance of the vortex pump. Based on two different impeller structures of forward-deflecting (denoted as R1 - F2) and backward-deflecting (denoted as F1 - R2), key parameters describing the impeller structure are calculated through optimization for the objective function of hydraulic efficiency by means of orthogonal tests and computational fluid dynamic simulations. Optimization computations show that the forward-deflecting blade impeller is superior to the backward-deflecting one. Model test of the optimized vortex pump is carried out calculating the error from the comparison of pump efficiencies calculated by model test and numerical simulation is calculated to be less than 6%.The experimental verification shows that the flow simulation has some errors.The weight of structure parameters such as the blade installation angle (α), the blade deflecting angle (β), the position of blade deflecting point (L), the radius (r) of smoothing arc at the deflecting point, the wedge type (W) of blade, to the lift head, the flow rate, and the efficiency of the pump is investigated, through multiparameter optimizations. Visualization observation of flows in the model pump consisted of a back-placed impeller and a front vaneless chamber is further performed. The characteristic of vortex formation predicted by flow simulation agrees with the result of visualization observation. The above results demonstrate that the optimum impeller type of vortex pump is forward-deflecting blade impeller. The optimum combination of the key structure parameters is that the deflection angle of the blade inlet (α) equals 30°, the position of blade deflecting point lM = 2/3 L, the chamfering radius (r) at the deflecting point r = 3 mm, and the best wedge type is axial deflecting blade. Copyright © 2021 Hui Quan et al.
WOS研究方向	Acoustics ; Engineering ; Mechanics
语种	英语
出版者	Hindawi Limited
WOS记录号	WOS:000640285400005
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148422]
专题	能源与动力工程学院
作者单位	College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Quan, Hui,Wu, Yongkang,Guo, Ying,et al. Multiobjective hydraulic design and performance analysis of a vortex pump based on orthogonal tests[J]. Shock and Vibration,2021,2021.
APA	Quan, Hui,Wu, Yongkang,Guo, Ying,Song, Kai,&Li, Yanan.(2021).Multiobjective hydraulic design and performance analysis of a vortex pump based on orthogonal tests.Shock and Vibration,2021.
MLA	Quan, Hui,et al."Multiobjective hydraulic design and performance analysis of a vortex pump based on orthogonal tests".Shock and Vibration 2021(2021).