Cavitation is the main factor that causes reliability problems in centrifugal charging pumps (CCPs) in nuclear power plants. In this study, the cavitation-induced unsteady flow characteristics of a CPR1000 CCP were investigated by numerical and experimental methods. The vapor distribution in the impeller, velocity fluctuation, and pressure fluctuation results in the time and frequency domains were considered for several typical monitoring points in the impeller and volute. The pressure fluctuations in the impeller occurred at an impeller rotating frequency of fR and its integer harmonics, whereas those in the volute mainly occurred at an impeller blade-passing frequency of fB and its integer harmonics. The absolute error between the simulated and measured NPSHr was 3.6%, and that between the calculated and measured head was 2.9%, validating the simulation of the cavitation performances of a CCP.
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January 2017
Research-Article
Cavitation-Induced Unsteady Flow Characteristics in the First Stage of a Centrifugal Charging Pump
Fan Zhang,
Fan Zhang
National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212013, China;
Jiangsu University,
Zhenjiang 212013, China;
Institute of Fluid Mechanics and
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: zf513301649@126.com
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: zf513301649@126.com
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Shouqi Yuan,
Shouqi Yuan
National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212013, China
e-mail: shouqiy@ujs.edu.cn
Jiangsu University,
Zhenjiang 212013, China
e-mail: shouqiy@ujs.edu.cn
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Martin Böhle,
Martin Böhle
Institute of Fluid Mechanics and
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: martin.boehle@mv.uni-kl.de
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: martin.boehle@mv.uni-kl.de
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Xusong Jiang
Xusong Jiang
National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212013, China
e-mail: 946021459@qq.com
Jiangsu University,
Zhenjiang 212013, China
e-mail: 946021459@qq.com
Search for other works by this author on:
Fan Zhang
National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212013, China;
Jiangsu University,
Zhenjiang 212013, China;
Institute of Fluid Mechanics and
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: zf513301649@126.com
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: zf513301649@126.com
Shouqi Yuan
National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212013, China
e-mail: shouqiy@ujs.edu.cn
Jiangsu University,
Zhenjiang 212013, China
e-mail: shouqiy@ujs.edu.cn
Qiang Fu
Ji Pei
Martin Böhle
Institute of Fluid Mechanics and
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: martin.boehle@mv.uni-kl.de
Fluid Machinery,
Technical University of Kaiserslautern,
Kaiserslautern 67663, Germany
e-mail: martin.boehle@mv.uni-kl.de
Xusong Jiang
National Research Center of Pumps,
Jiangsu University,
Zhenjiang 212013, China
e-mail: 946021459@qq.com
Jiangsu University,
Zhenjiang 212013, China
e-mail: 946021459@qq.com
1Corresponding author.
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received March 25, 2015; final manuscript received July 16, 2016; published online September 20, 2016. Assoc. Editor: Satoshi Watanabe.
J. Fluids Eng. Jan 2017, 139(1): 011303 (13 pages)
Published Online: September 20, 2016
Article history
Received:
March 25, 2015
Revised:
July 16, 2016
Citation
Zhang, F., Yuan, S., Fu, Q., Pei, J., Böhle, M., and Jiang, X. (September 20, 2016). "Cavitation-Induced Unsteady Flow Characteristics in the First Stage of a Centrifugal Charging Pump." ASME. J. Fluids Eng. January 2017; 139(1): 011303. https://doi.org/10.1115/1.4034362
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