多喷嘴射流泵流场的数值模拟与PIV测量

doi:10.3969／j.issn.1674—8530.2009.01.008

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (339 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to study the performance and flow characteristic of multi-nozzle jet pump,the multi-nozzle jet pumps with different structures are designed.The pumps with different structural parameters are simulated numerically using k-ε model and wall functions.The results showed that the number of nozzles,the nozzle angle and the nozzle-to-throat clearance have a great influence on the performance of jet pump,and the turbulent kinetic energy is greater in suction chamber and in inlet of throat.PIV is used to measure the internal flow field of jet pumps with different structures.Velocity vectors and turbulent kinetic energy contours on the symmetry plate of the jet pump are obtained.The results show that the faster the velocity gradient decays,the shorter mixing distances of operating fluid and the drawn liquid are.The multi-nozzle jet pump could shorten the length of throat pipe.The measurement results agree with the numerical simulation.

Key words： jet pump flow field numerical simulation particle image velocimetery multi-nozzle

Received: 05 November 2008 Published: 30 January 2009

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://zzs.ujs.edu.cn/pgjx/EN/10.3969／j.issn.1674—8530.2009.01.008 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2009/V27/I1/35

[1]Winoto S H,Li H,Shah D A.Efficiency of jet pumps[J].Journal of Hydraulic Engineering,2000,126(2):150-156.

[2]陆宏圻.射流泵技术的理论及应用[M].北京:水利电力出版社,1989.

[3]Gazzar M E,Meakhall T,Mikhall S.Numerical and experimental study of the influence of drag reduction agent (carboxy methyl cellulose) on the central jet pump performance[J].Power and Energy,2007,221(7):1067-1073.

[4]Guillaume D W,Judge T A.Improving the efficiency of a jet pump using an elliptical nozzle[J].Review of Scientific Instruments,1999,70(12):4727-4729.

[5]王常斌,林建忠,石兴.射流泵湍流场的数值模拟与试验研究[J].高校化学工程报,2006,20(2):175-179.Wang Changbin,Lin Jianzhong,SHI Xing.Numerical simulation and experiment on the turbulent flow in the jet pump[J].Journal of Chemical Engineering of Chinese Universities,2006,20(2):175-179.(in Chinese)

[6]Karambirov S N,Chebaevskii V F.Possibilities of improving ejector pump characteristics[J].Chemical & Petroleum Engineering,2005,41:66-74.

[7]段新胜,孙孝庆.环形多喷嘴射流泵结构参数的试验研究[J].探矿工程,1999,6:17-19.Duan Xinsheng,Sun Xiaoqing.The experimental study on compositional parameters of the annular multinozzle jet pump[J].Exploration Engineering,1999,6:17-19.(in Chinese)

[8]Wiesche S.Numerical simulation of cavitation effects behind obstacles and in an automotive fuel jet pump[J].Heat and Mass Transfer,2005,41(7):615-624.

[9]常洪军,朱熠.液体射流泵内部三维流场的数值模拟[J].排灌机械,2005,23(6):13-15.Chang Hongjun,Zhu Yi.Three dimensional numerical simulation on interior flow field for liquid jet pump[J].Drainage and Irrigation Machinery,2005,23(6):13-15.(in Chinese)

[10]Tadashi N,Yukitaka Y,Hidetoshi K,et al.Flow analysis for single and multi-nozzle jet pump[J].JSME International Journal,2006,49(4):933-940.

[11]杨敏官,刘栋,贾卫东,等.离心泵叶轮内部三维湍动流动的分析[J].江苏大学学报:自然科学版,2006,27(6):524-527.Yang Minguan,Liu Dong,Jia Weidong,et al.Analysis on turbulent flow in impeller of centrifugal pump[J].Journal of Jiangsu University:National Science Edition,2006,27(6):524-527(in Chinese).