Influence of Gas Content on Performance Effect on Shunt Vane Type Aviation Fuel Pump

Zixuan Xu; Zhenggui Li; Weijun Wang; Qifan Wang; Yang Xu; Yibin Li

doi:10.5293/IJFMS.2022.15.1.121

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자료유형: 학술저널

저자정보: Zixuan Xu (Ministry of Education) Zhenggui Li (Ministry of Education) Weijun Wang (Aviation Industry Chengdu Kaitian Electronics) Qifan Wang (Ministry of Education) Yang Xu (Ministry of Education) Yibin Li (Lanzhou University of Technology)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.15 No.1

발행연도: 2022.3

수록면: 121 - 129 (9page)

DOI: 10.5293/IJFMS.2022.15.1.121

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In order to study the flow law of shunt vane type aviation fuel pump under the condition of gas-liquid mixture transportation, based on the RNG K-ε turbulence model and the Euler-Euler non-uniformity model, using the ANSYS CFX software to calculate an aviation fuel pump under different gas content conditions, and analyzing the flow of the fuel pump and the pressure law of the blade pressure. The research shows that the gas phase is mainly distributed in the front section of the long blade suction surface and the back section of the short blade pressure surface. The increased gas content will result in increased liquid velocity in the pump, which makes the gas phase gradually develop towards the suction surface of long and short blades and diffuse to the impeller flow path. The gas content mainly affects the pressure surface load of the fuel pump blades. The pressure load curve fluctuates at the relative position of the short blade (0.5-0.6) and long blade (0.3-0.6) as well as at the end of the blade and decreases with the increase in gas content. The change of pressure fluctuation of the blade is mainly reflected at the junction of long and short blades, and the pressure fluctuation amplitude of the front section of the short blade and middle section of the long blade fluctuates greatly. With the increase in gas content, the pressure fluctuation amplitude at each monitoring point reduces. The research results can provide some reference for the design of aviation fuel pumps.

#gas-liquid two-phase #fuel pump #long and short blade #numerical simulation #pressure fluctuation

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