某型电动飞机气动特性数值模拟与风洞实验

Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》

张钧尧 佟刚 李亚东 王锋 周国庆

Abstract： In order to verify the rationality of the aerodynamic design of a large aspect ratio electric aircraftand provide data for the calculation of flight performance and quality ,the finite volume method is used todiscretely solve the three-dimensional compressible Reynolds-averaged Navier-Stokes equation and theSpalart-Allmaras turbulence model is selected for this electric aircraft.CFD numerical simulation of aircraftflow field.The results show that the aerodynamic design of this type of electric aircraft is reasonable , thelift-drag ratio at cruising speed can reach up to 23 , and it has high acrodynamic efficiency ; the lift coeffi-cient , drag coefficient and lift-drag ratio of the whole aircraft are obtained through CFD numerical simula-tion. In order to verify the CFD calculation results , a scaled model wind tunnel experiment was carried outfor this electric aircraft.The results show that the CFD numerical simulation method results are highly con-sistent with the wind tunnel experimental results , indicating that the CFD calculation results are accurate.This method can provide guidance for the aerodynamic design of large aspect ratio electric aircraft.

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