Numerical study of turbulent flow past a rotating axial-flow pump based on a level-set immersed boundary method

doi:10.1016/j.renene.2020.12.103

IMECH-IR > 非线性力学国家重点实验室

	Numerical study of turbulent flow past a rotating axial-flow pump based on a level-set immersed boundary method
	Kan, Kan 1,5,6; Yang ZX(杨子轩)2,3; Lyu, Pin 4,5,6; Zheng, Yuan 1; Shen, Lian 5,6
通讯作者	Kan, Kan(kankan@hhu.edu.cn) ; Yang, Zixuan(yangzx@imech.ac.cn)
发表期刊	RENEWABLE ENERGY
	2021-05-01
卷号	168 页码:960-971
ISSN	0960-1481
摘要	Large-eddy simulation is performed to study the turbulence statistics and flow structures of the water past a rotating axial-flow pump under different flow-rate working conditions. A novel sharp-interface level-set based immersed boundary method is applied to capture the complex geometry of the pump. An unstructured triangular mesh is used to discretize the complex surface geometry of the pump, and a ray-tracing method is employed to classify the computational domain into fluid and solid regions. Turbulence statistics, including the mean velocity, turbulent kinetic energy (TKE), turbulence production, and turbulence dissipation, are analyzed under five different flow-rate working conditions around the designed condition. The results show that unsteady wake, tip leakage flow, and flow separation are accompanied by a high TKE magnitude. For the high turbulence intensity under off-designed working conditions, the tip leakage flow plays a leading role at low flow-rates, and flow separation dominates at high flow-rates. (c) 2021 Elsevier Ltd. All rights reserved.
关键词	Axial-flow pump Large-eddy simulation Immersed boundary method Level set function Turbulent kinetic energy Flow separation
DOI	10.1016/j.renene.2020.12.103
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000617119000009
WOS研究方向	Science & Technology - Other Topics ; Energy & Fuels
WOS类目	Green & Sustainable Science & Technology ; Energy & Fuels
资助项目	National Natural Science Foundation of China[52009033] ; Natural Science Foundation of Jiangsu Province[BK20200509] ; Fundamental Research Funds for the Central Universities[B210202066]
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province ; Fundamental Research Funds for the Central Universities
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Kan, Kan ; Yang, Zixuan
引用统计	被引频次：71[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/311007/86089
专题	非线性力学国家重点实验室
作者单位	1.Hohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Peoples R China; 2.Chinese Acad Sci, Inst Mech, Beijing 100864, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Harbin Inst Technol, Minist Educ, Key Lab Struct Dynam Behav & Control, Harbin 150090, Peoples R China; 5.Univ Minnesota, Dept Mech Engn, 111 Church St SE, Minneapolis, MN 55455 USA; 6.Univ Minnesota, St Anthony Falls Lab, Minneapolis, MN 55455 USA
推荐引用方式 GB/T 7714	Kan, Kan,Yang ZX,Lyu, Pin,et al. Numerical study of turbulent flow past a rotating axial-flow pump based on a level-set immersed boundary method[J]. RENEWABLE ENERGY,2021,168:960-971.
APA	Kan, Kan,杨子轩,Lyu, Pin,Zheng, Yuan,&Shen, Lian.(2021).Numerical study of turbulent flow past a rotating axial-flow pump based on a level-set immersed boundary method.RENEWABLE ENERGY,168,960-971.
MLA	Kan, Kan,et al."Numerical study of turbulent flow past a rotating axial-flow pump based on a level-set immersed boundary method".RENEWABLE ENERGY 168(2021):960-971.

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