Flow in a typical centrifugal pump is known to be unsteady due to flow instabilities and mutual interactions between the rotating part and the stationary parts. Flow instabilities are mostly viscous phenomena such as boundary layer separation and vortex shedding that produces relatively low frequency and small amplitude pressure fluctuations. Mutual interaction between the impeller blades and the guide vane diffuser produces relatively high frequency and large amplitude pressure fluctuations. This phenomenon is more closely related to compressibility than viscosity. It is important because it may cause structural vibration and noise. In this paper, the steady and unsteady turbulent flow through the whole flow passage of an entire centrifugal pump, has been computed to predict the pressure fluctuation of flow in the pump.
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ASME 2005 Fluids Engineering Division Summer Meeting
June 19–23, 2005
Houston, Texas, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4198-7
PROCEEDINGS PAPER
Unsteady Flow Simulation Through a Centrifugal Pump
Naixiang Chen,
Naixiang Chen
Tsinghua University, Beijing, China
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Zhaohui Xu,
Zhaohui Xu
Hua-Dian Electric Company, Ltd., Beijing, China
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Shuhong Liu
Shuhong Liu
Tsinghua University, Beijing, China
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Yulin Wu
Tsinghua University, Beijing, China
Naixiang Chen
Tsinghua University, Beijing, China
Zhaohui Xu
Hua-Dian Electric Company, Ltd., Beijing, China
Shuhong Liu
Tsinghua University, Beijing, China
Paper No:
FEDSM2005-77012, pp. 1543-1549; 7 pages
Published Online:
October 13, 2008
Citation
Wu, Y, Chen, N, Xu, Z, & Liu, S. "Unsteady Flow Simulation Through a Centrifugal Pump." Proceedings of the ASME 2005 Fluids Engineering Division Summer Meeting. Volume 1: Symposia, Parts A and B. Houston, Texas, USA. June 19–23, 2005. pp. 1543-1549. ASME. https://doi.org/10.1115/FEDSM2005-77012
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