, Volume 24, Issue 4, pp 971-976

Numerical simulation of water flow in an axial flow pump with adjustable guide vanes

Abstract

A new adjustable guide vane (AGV) is proposed in this paper. This vane can reduce hydraulic losses and improve the performance of an axial flow pump. The formula of AGV adjustment was obtained after theoretical analysis. The fluid flow inside the axial flow pump with a fixed guide vane and adjustable guide vane was simulated. The calculated Q-H curves for the fixed guide vane agreed well with the experimental ones. The results show that the attack angle and flow separation have an important contribution to the vortices which create hydraulic losses in the guide vane channel. The AGV can decrease hydraulic losses and significantly enhance the pump head and efficiency by changing the guide vane angle.

This paper was recommended for publication in revised form by Associate Editor Won-Gu Joo
Zhong-Dong Qian is a Professor at the School of Water Resources and Hydropower Engineering at Wuhan University, China. He received his Ph.D. degree in Thermal Engineering from Northern Eastern University in 2002. He has research experience from 2002 to 2004 at Tsinghua University as a postdoctoral researcher. His teaching and research areas include computational fluid dynamics, hydraulic machinery and hydrodynamics.
Young-Ho Lee received his B.E. and M.E. degrees from Korea Maritime University, Korea. He received his Ph.D. in Engineering from the University of Tokyo, Japan. Dr. Lee is currently a Professor at the Division of Mechanical and Information Engineering, Korea Maritime University. His research interests include ocean energy, wind energy, small hydro power, fluid machinery, PIV, and CFD.