卧式前轴伸泵装置流道三维流动及水力损失

doi:10.3969／j.issn.1674—8530.2009.01.011

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (284 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The numerical simulation is applied to study the 3D flow field and hydraulic performance of the pump system with horizontal forward extension shaft.The flow patterns and hydraulic loss of the inlet and outlet conduits are obtained respectively.Meanwhile the method of transparent conduit model test is applied to verify the simulation results.The results indicate that the flow patterns of numerical simulation for inlet and outlet conduits of the pump system with horizontal forward extension shaft are consistent with those of the model tests.There is local vortex within a limited extent behind the pump shaft in the inlet conduit.The velocity uniformity degree at the outlet section of the inlet conduit is 96.9%.The flow at the inlet of the outlet conduit has a little vortex and enters into the outlet conduit spirally.The velocity around the outer part of the outlet is greater,while the velocity near the center of the outlet conduit is less.The hydraulic loss from the numerical simulation for the inlet and outlet conduits is 0.142 m and 0.163 m respectively,while the model test result is 0.137 m and 0.168 m respectively.The pump system with horizontal forward extension shaft can be applied for a pumping station with low head.

Key words： tubular pump system type of forward extension shaft horizontal pump conduit hydraulic performance numerical simulation model test

Received: 15 June 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
	LU Lin-Guang
	LIANG Jin-Dong
	Chen-A-Ping
	Liu-Rong-Hua

Cite this article:

LU Lin-Guang,LIANG Jin-Dong,Chen-A-Ping等. 3D turbulet flow and hydraulic loss for pump system with horizontal forward-extension shaft[J]. Journal of Drainage and Irrigation Machinery Engin, 2009, 27(1): 47-50.

URL:

http://zzs.ujs.edu.cn/pgjx/EN/10.3969／j.issn.1674—8530.2009.01.011 OR http://zzs.ujs.edu.cn/pgjx/EN/Y2009/V27/I1/47

[1]沙锡林.贯流式水电站[M].北京:中国水利水电出版社,1999:2-4.

[2]张仁田.南水北调工程中大型泵站泵型选择的若干问题[J].水力发电学报,2003(4):119-127.Zhang Rentian.Key issues in the selection of pumps and their systems for the project of water transferring from south to north in China[J].Journal of Hydroelectric Engineering,2003(4):119-127.(in Chinese)

[3]张仁田.贯流式机组在南水北调工程中的应用研究[J].排灌机械,2004,22(5):1-6.Zhang Rentian.Study on application of tubular pumps in the project of south to north water transfer project[J].Drainage and Irrigation Machinery,2004,22(5):1-6.(in Chinese)

[4]Landau Y A,Zavalinlch G T.Features of low-head pumping stations with horizontal-shaft sets[J].Power Technology and Engineering(formerly Hydrotechnical Construction),1975,9(5):513-515.

[5]Launder B E,Spalding D B.The numerical computation of turbulent flows[J].Computer Methods in Applied Mechanics and Engineering,1974,3(2):269-289.

[6]Shyy W,Braaten M E.Three-dimensional analysis of the flow in a curved hydraulic turbine draft tube[J].International Journal for Numerical Methods in Flulds,1986,6(12):861-882.

[7]Li Yaojun,Wang Fujun.Numerical investigation of performance of an axial-flow pump with inducer[J].Journal of Hydrodynamics,Ser.B,2007,19(6):705-711.

[8]Blazek J.Computational Fluid Dynamics:Principles and Applications[M].2nd ed.Oxford:Elsevier Ltd.,2005:227-270.

[9]陆林广,吴开平,冷豫,等.泵站出水流道模型水力损失的测试[J].排灌机械,2005,23(5):23-26.Lu Linguang,Wu Kaiping,Leng Yu,et al.Measurement for hydraulic loss of outlet conduit of pumping station[J].Drainage and Irrigation Machinery,2005,23(5):23-26.(in Chinese)

[10]Rodi W.Turbulence models and their application in hydraulics experimental and mathematical fluid dynamics[M].Delft:IAHR Section on Fundamentals of Division Ⅱ,1980:44-46.

[11]陆林广,祝婕,冷豫,等.泵站进水流道模型水力损失的测试[J].排灌机械,2005,23(4):14-17.Lu Linguang,Zhu Jie,Leng Yu,et al.Measurement for hydraulic loss of inlet conduit of pumping station[J].Drainage and Irrigation Machinery,2005,23(4):14-17.(in Chinese)