Numerical Calculation and Experimental Study of the Axial Force of Aero Fuel Centrifugal Pumps
Source abstract
Abstract
Axial force is one of the important factors affecting the life and reliability of centrifugal pumps. Based on the SST turbulence model, the unsteady internal flow field of an aero fuel centrifugal pump under various working conditions was analyzed by using the finite volume method and the axial force of the impeller component was predicted. The position servo force measuring system was used to measure the axial force of the fuel centrifugal pump and the theoretical formula of axial force was modified according to the numerical results and experimental values. The study shows that the pressure distribution of the front and rear pump chambers presented uneven circumferential distribution under the influence of dynamic and static interference through numerical simulation. The simulated head number is basically consistent with the test result and the maximum error of the axial force value obtained by the numerical calculation and the experimental value was 9.7% under different speeds, which verified the accuracy of the numerical simulation. Furthermore, the modified formula can accurately calculate the axial force of the fuel centrifugal pump with an error of less than 9.88%. The results of the study provide a theoretical basis for the calculation and balance of axial force in an aero aero fuel centrifugal pump.
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Research context
OpenAlex topics: Cavitation Phenomena in Pumps · Hydraulic and Pneumatic Systems · Cyclone Separators and Fluid Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
AECC Guizhou Honglin Aero-Engine Control Technology Co., Ltd., Guiyang 550009, China
AVIC Jincheng Nanjing Engineering Institute of Aircraft System, Nanjing 211100, China
Funding
National Natural Science Foundation of China
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