In order to analyze the flow characteristics of a high efficiency axial-flow pump, the behavior of the flow in an adjustable axial-flow pump bas been analyzed by numerical simulations of the entire stage based on Fluent software. The prediction data shows agreement with the experimental results. Numerical results show that the static pressure on pressure side of rotor blades increases slightly at radial direction, and remains almost constant in circumferential direction at design conditions, while it increases gradually from inlet to exit on suction side along the flow direction. The static pressure, total pressure and velocity at inlet, rotor blade exit and stator outlet were measured by five-hole probe. The experimental results show, inlet flow is almost axial and the prerotation is very small at design conditions. The meridional velocity and circulation distributions are almost uniform at rotor blades exit at design condition. The residual circulation still exists at downstream of stator, and the absolute flow angle at radial direction is almost consistent at design conditions, but Cu increases linearly from hub to tip at small flow rate conditions. To determine the influence of the hub leakage, a contrast experiment was accomplished. The measurement results show that hub leakage results in the decrease of efficiency, and the meridional velocity and circulation at rotor blade exit, especially near hub leakage region are influenced by the leakage.
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ASME 2009 Fluids Engineering Division Summer Meeting
August 2–6, 2009
Vail, Colorado, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4372-7
PROCEEDINGS PAPER
Numerical Simulation and Flow Field Measurement of High Efficiency Axial-Flow Pump
De-sheng Zhang,
De-sheng Zhang
Jiangsu University, Zhenjiang, Jiangsu, China
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Wei-dong Shi,
Wei-dong Shi
Jiangsu University, Zhenjiang, Jiangsu, China
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Bin Chen,
Bin Chen
Jiangsu University, Zhenjiang, Jiangsu, China
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Xing-fan Guan
Xing-fan Guan
Jiangsu University, Zhenjiang, Jiangsu, China
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De-sheng Zhang
Jiangsu University, Zhenjiang, Jiangsu, China
Wei-dong Shi
Jiangsu University, Zhenjiang, Jiangsu, China
Bin Chen
Jiangsu University, Zhenjiang, Jiangsu, China
Xing-fan Guan
Jiangsu University, Zhenjiang, Jiangsu, China
Paper No:
FEDSM2009-78100, pp. 99-106; 8 pages
Published Online:
July 26, 2010
Citation
Zhang, D, Shi, W, Chen, B, & Guan, X. "Numerical Simulation and Flow Field Measurement of High Efficiency Axial-Flow Pump." Proceedings of the ASME 2009 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A, B and C. Vail, Colorado, USA. August 2–6, 2009. pp. 99-106. ASME. https://doi.org/10.1115/FEDSM2009-78100
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