Influence of collecting pipe structure on external characteristics and wake flow of roto-jet pump

doi:10.11990/jheu.201909077

	Influence of collecting pipe structure on external characteristics and wake flow of roto-jet pump
	Huang, Qi; Liu, Zailun; Li, Qifei; Quan, Hui; Zeng, Jilai
	2021-03-05
发表期刊	Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
ISSN	10067043
卷号	42 期号:3 页码:368-375
摘要	The structure of the collecting pipe seriously affects performance of the roto-jet pump. Taking the open-type test bench for the roto-jet pump and five model pumps with collecting pipes of different structures as the research objects, we analyzed the influence of the collecting pipe structure on the internal and external characteristics of the roto-jet pump. In order to avoid the assumption of isotropic eddy viscosity in the numerical calculation, the Reynolds stress RSM linear pressure-strain model was selected to compare the numerical calculation results with the experimental results to verify credibility of the calculation. The results show that too small or too large an inlet diameter of the test pump collecting pipe will cause the head and efficiency of the roto-jet pump to drop. The shape of the collecting pipe has a significant impact on the head and efficiency of the roto-jet pump, and the wing-shaped collecting pipe has a higher head and efficiency. The relative radius in the range of r' 1.0 of the wake area of the roto-jet pump is affected by the rotating casing. The momentum transfer between the high-speed layer and the low-speed layer is intense, and the Reynolds stress values for the same positions of the collecting pipes of different structures are generally different on the order of 10-4. These results can provide an important basis for the design and selection of collecting pipe structures. Copyright ©2021 Journal of Harbin Engineering University.
关键词	Efficiency Jet pumps Pipe Reynolds number Wakes Collecting pipes Different structure External characteristic Linear pressure Numerical calculation Relative radius Research object Reynolds stress
DOI	10.11990/jheu.201909077
收录类别	EI
语种	中文
出版者	Editorial Board of Journal of Harbin Engineering
EI入藏号	20211910339449
EI主题词	Collector efficiency
EI分类号	618.2 Pumps ; 619.1 Pipe, Piping and Pipelines ; 631.1 Fluid Flow, General ; 702.3 Solar Cells ; 913.1 Production Engineering
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/150753
专题	能源与动力工程学院新能源学院
作者单位	School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	新能源学院
第一作者的第一单位	新能源学院
推荐引用方式 GB/T 7714	Huang, Qi,Liu, Zailun,Li, Qifei,et al. Influence of collecting pipe structure on external characteristics and wake flow of roto-jet pump[J]. Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,2021,42(3):368-375.
APA	Huang, Qi,Liu, Zailun,Li, Qifei,Quan, Hui,&Zeng, Jilai.(2021).Influence of collecting pipe structure on external characteristics and wake flow of roto-jet pump.Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,42(3),368-375.
MLA	Huang, Qi,et al."Influence of collecting pipe structure on external characteristics and wake flow of roto-jet pump".Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University 42.3(2021):368-375.