Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

Version 1 : Received: 7 January 2020 / Approved: 9 January 2020 / Online: 9 January 2020 (05:22:18 CET)

A peer-reviewed article of this Preprint also exists.

Li, J.; Wang, X.; Wang, Y.; Wang, W.; Chen, B.; Chen, X. Effects of a Combination Impeller on the Flow Field and External Performance of An Aero-Fuel Centrifugal Pump. Energies 2020, 13, 919. Li, J.; Wang, X.; Wang, Y.; Wang, W.; Chen, B.; Chen, X. Effects of a Combination Impeller on the Flow Field and External Performance of An Aero-Fuel Centrifugal Pump. Energies 2020, 13, 919.

Journal reference: Energies 2020, 13, 919
DOI: 10.3390/en13040919

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

Subject Areas

aero-fuel centrifugal pump; combination impeller; flow loss; flow characteristics; head and efficiency

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