Effects of a Combination Impeller on the Flow Field and External Performance of an Aero-Fuel Centrifugal Pump

Jia Li, Xin Wang, Yue Wang, Wancheng Wang, Baibing Chen and Xiaolong Chen
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Jia Li: School of Construction Machinery, Chang’an University, Xi’an 710061, China
Xin Wang: School of Construction Machinery, Chang’an University, Xi’an 710061, China
Yue Wang: AECC Xi’an Power Control Technology Co. LTD., Xi’an 710077, China
Wancheng Wang: AECC Xi’an Power Control Technology Co. LTD., Xi’an 710077, China
Baibing Chen: Xi’an Modern Control Technology Research Institute, Xi’an 710065, China
Xiaolong Chen: Xi’an Modern Control Technology Research Institute, Xi’an 710065, China

Energies, 2020, vol. 13, issue 4, 1-16

Abstract: Aero-fuel centrifugal pumps are important power plants in aero-engines. Unlike most of the existing centrifugal pumps, a combination impeller is integrated with the pump to improve performance. First, the critical geometrical parameters of the combination impeller and volute are given. Then, the effects of the combination impeller on the flow characteristics of the impeller and volute are clarified by comparing simulation results with that of the conventional impeller, where the effectiveness of the selected numerical method is validated by an acceptable agreement between simulation and experiment. Finally, the experiment is set to test the external performance of the studied pump. A significant feature of this study is that the flow characteristics are significantly ameliorated by reducing the flow losses that emerged in the impeller inlet, impeller outlet, and volute tongue. Correspondingly, the head and efficiency of a combination impeller are higher with comparison to a conventional impeller. Consequently, it is a promising approach in ameliorating the flow field and improving external performance by applying a combination impeller to an aero-fuel centrifugal pump.

Keywords: aero-fuel centrifugal pump; combination impeller; flow loss; flow characteristics; head and efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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