航空科学技术2025，Vol.36Issue(8)：71-77,7.DOI:10.19452/j.issn1007-5453.2025.08.009
直升机燃油泵流动控制与优化设计研究
Research on Flow Control and Optimal Design of Helicopter Fuel Pump
摘要
Abstract
The fuel pump is a critical component of the fuel system,and its performance directly affects the performance and safety of the aircraft.In order to optimize and improve the transportation performance of the helicopter fuel pump,the design of the impeller suction section is optimized on the original model,and the volute diffusion section is set with a hydrofoil structure.Based on the renormalization group(RNG)k-ε turbulence model and the Zwart-Gerber-Belamri(ZGB)cavitation model,the single-phase and cavitation flow fields of helicopter fuel pump under the flow conditions of 50 L/h,400 L/h and 800 L/h are numerically calculated,respectively.The results show that by simplifying the structure of the suction chamber,the non-uniform effect of suction resistance is eliminated,and the flow state in the impeller is restored to a more ideal flow state.Hydrofoils are arranged in the volute diffusion section,which reduces the diffusion degree of the diffusion section and plays the role of rectification.The pressure increase value of the improved model ΔP increases significantly,and the hydraulic efficiency has been significantly improved under high flow conditions,especially the hydraulic efficiency of the spiral case has been increased by nearly 5%,and the cavitation performance has also been significantly improved under high flow conditions.The results provide a theoretical basis for the cavitation flow control and efficiency improvement of the helicopter fuel pump.关键词
燃油泵/流动控制/优化设计/空化/数值模拟Key words
fuel pump/flow control/optimization design/cavitation/numerical simulation分类
航空航天引用本文复制引用
王维军,王晓全,陈红杏,李秋实,张浩..直升机燃油泵流动控制与优化设计研究[J].航空科学技术,2025,36(8):71-77,7.基金项目
航空科学基金(2023M026151001) Aeronautical Science Foundation of China(2023M026151001) （2023M026151001）
