Flow simulation of the effects of pressure angle to lobe pump rotor meshing characteristics

doi:10.1088/1757-899X/52/3/032022

	Flow simulation of the effects of pressure angle to lobe pump rotor meshing characteristics
	Li, Y. B.2; Jia, K.3; Meng, Q. W.1; Shen, H.3; Sang, X. H.3
	2013
卷号	52
DOI	10.1088/1757-899X/52/3/032022
英文摘要	Lobe pump rotor profiles' radius of base circle, addendum circle and root circle are closely connected with pressure angle. The change of pressure angle has some effect on lobe pump performance. This paper focuses on two-dimensional profile lobe pump and introduces involute rotor profiles and pressure angle parameter equation. We used geometry and two rotor mesh characteristics to establish lobe pump models of different pressure angles. Monitored the lobe pump's pressure and velocity of input and output cross section. We used the K-Epsilon turbulence model and the dynamic meshes to compute the two-dimensional turbulence flow field of the lobe pump and obtained the pressure and velocity pulsation picture of different models and speeds. The results show with increasing pressure angle, the velocity of output decreases. The fluctuation of velocity is kept almost constant. When the pressure angle is 45 degrees, the lobe pump has good comprehensive properties. The increasing of rotor speed makes the output flow and the oil absorption pressure increase. But the pressure fluctuation is acute. The lobe pump has vortex and leakage phenomenon in work progress. It will cause energy losses and decrease efficiency.
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:000329430200079
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/37002]
专题	能源与动力工程学院机电工程学院
通讯作者	Li, Y. B.
作者单位	1.Jinan UK Metering Flow Machinery Co Ltd, Jinan 250021, Shandong, Peoples R China 2.Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Gansu, Peoples R China 3.Lanzhou Univ Technol, Sch Mech & Elect Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Y. B.,Jia, K.,Meng, Q. W.,et al. Flow simulation of the effects of pressure angle to lobe pump rotor meshing characteristics[C]. 见:.