Design and Simulation of Aero-Engine Combination Vortex Fuel Pump

To solve the problem that single stage booster pump has the problem of low oil pressure at low speed condition. Paper gave a design method for three stage combination vortex pump which uses radial series. The preliminary structural parameters of the vortex pump were designed by using the empirical coefficient method. Then Hex/Wedge grid is used to generate mesh for the established 3D model of the vortex pump. The final structure parameters were obtained by CFD numerical simulation optimization iterately. Finally, the flow field of combination vortex pump was analyzed. Simulation results show that: The combination vortex pump meet the design requirements.