Numerical investigation on the transient characteristics of sediment-laden two-phase flow in a centrifugal pump

doi:10.1007/s12206-017-1218-6

	Numerical investigation on the transient characteristics of sediment-laden two-phase flow in a centrifugal pump
	Zhao, Weiguo 1,2; Zhao, Guoshou 1,2
刊名	JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
	2018-01
卷号	32 期号:1 页码:167-176
关键词	Centrifugal pump Sediment-laden flow Transient characteristics Particle size and concentration
ISSN号	1738-494X
DOI	10.1007/s12206-017-1218-6
英文摘要	The objective of this work was to determine pressure fluctuation and transient flow characteristics, which aims to provide references to improve noise and vibration performance for the pump design and optimization when delivering sediment-laden flow. The three-dimensional (3D) transient simulations were simulated by SST k-omega turbulence model combined with Homogeneous equilibrium model (HEM). The experimental and numerical data was compared to validate the numerical accuracy. The simulation results predicted that the concentration shows strong effects on the external performance, velocity, pressure, turbulent kinetic energy distribution and peak amplitude of pulsation frequency, which all perform increasing trend with the rise of concentration. Meanwhile, the effect of the diameter size of particles on the flow field was relatively minor, which can also evidently influence the internal flow, but the effect is not simply proportional to the diameter size. The effect of diameter size on silt flow needs to be taken into account associated with the concentration distribution. The dominant frequency of solid-liquid approximately equals 0.8 times that of pure water, and the transient characteristics of sediment-laden flow perform low frequency with high amplitude features.
资助项目	National Natural Science Foundation of China[51269011] ; Open Research Subject of Key Laboratory of Fluid and Power Machinery (Xihua University), Ministry of Education[szjj2017-093]
WOS研究方向	Engineering
语种	英语
出版者	KOREAN SOC MECHANICAL ENGINEERS
WOS记录号	WOS:000423142100018
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32886]
专题	能源与动力工程学院
通讯作者	Zhao, Weiguo
作者单位	1.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China 2.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Weiguo,Zhao, Guoshou. Numerical investigation on the transient characteristics of sediment-laden two-phase flow in a centrifugal pump[J]. JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY,2018,32(1):167-176.
APA	Zhao, Weiguo,&Zhao, Guoshou.(2018).Numerical investigation on the transient characteristics of sediment-laden two-phase flow in a centrifugal pump.JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY,32(1),167-176.
MLA	Zhao, Weiguo,et al."Numerical investigation on the transient characteristics of sediment-laden two-phase flow in a centrifugal pump".JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY 32.1(2018):167-176.