Numerical investigation of sediment erosion to the impeller in a double-suction centrifugal pump

doi:10.1088/1757-899X/52/6/062004

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	Numerical investigation of sediment erosion to the impeller in a double-suction centrifugal pump
	Yang, C. X.; Dong, F. D.; Cheng, X. R.
	2013
卷号	52
DOI	10.1088/1757-899X/52/6/062004
英文摘要	Based on Euler-Lagrange multiphase flow model and Finnie ductile material erosion model, using phase coupled SIMPLE algorithm, k -e RNG turbulence model and Reynolds Averaged Navier-Stokes (RANS) equation, the solid-liquid two-phase flows in a double-suction centrifugal pump is simulated. The erosion rate and solid mass concentration distribution on the pressure and suction surfaces of blades were obtained in different situations, which include different solid mass concentration (2.17kg/m(3,) 8.66kg/m(3) and 14kg/m(3)) and different sediment diameter (0.019mm, 0.036mm, and 0.076mm). By comparisons of the test and numerical simulation values, the reliability of numerical calculation method has been verified. The numerical simulation result obtained show that the Finnie ductile material erosion model can accurately predict the erosion rate and erosion areas on the impeller. The erosion rate is increases with solid sediment diameter or solid mass concentration increasing. The main erosion areas on the pressure surface of blades near the blade inlet and outlet and close to the hub, and on the suction surface of blades near the blade inlet and close to the hub. For different sediment diameter or solid mass concentration, the erosion rate on the pressure surface of blades is always greater than that on its suction surface.
会议录	6TH INTERNATIONAL CONFERENCE ON PUMPS AND FANS WITH COMPRESSORS AND WIND TURBINES (ICPF2013)
会议录出版者	IOP PUBLISHING LTD
会议录出版地	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS记录号	WOS:000329430200136
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36893]
专题	兰州理工大学能源与动力工程学院
通讯作者	Yang, C. X.
作者单位	Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Yang, C. X.,Dong, F. D.,Cheng, X. R.. Numerical investigation of sediment erosion to the impeller in a double-suction centrifugal pump[C]. 见:.