Flight simulation from takeoff to yawing of eVTOL airplane with coaxial propellers by fluid-rigid body interaction  

作　　者：Ritsuka Gomi Ayato Takii Masashi Yamakawa Shinichi Asao Seiichi Takeuchi Momoha Nishimura 

机构地区：[1]Department of Mechanical Engineering,Kyoto Institute of Technology,Kyoto,Japan [2]Department of Mechanical Engineering,College of Industrial Technology,Hyogo,Japan

出　　处：《Advances in Aerodynamics》2023年第1期29-43,共15页空气动力学进展（英文）

基　　金：JKA through its promotion funds from KEIRIN RACE and by JSPS KAKENHI Grant Number 21K03856.

摘　　要：In this study,we adopt a coupled fluid-rigid body simulation using the moving computational domain method and multi-axis sliding mesh method for the takeoff,hovering,and yawing flight of an electric vertical takeoff and landing aircraft(eVTOL).The aircraft model has four pairs of coaxial propellers,and the computational domain is divided into three domains to move the aircraft and eight propeller domains to rotate the propellers.As a result,we clarify the behavior and aerodynamic force of the aircraft when the input values are determined by the automatic control.The results in the flow field also show that the downwash spreads in a crisscross pattern on the ground,the wind reaches different ranges on the ground depending on the flight altitude,and that the coaxial propeller causes an asymmetry in the velocity field during yawing.Conse-quently,we conclude that this method is effective for the flight simulation of an eVTOL.

关 键 词：Computational fluid dynamics Moving grid Coupled simulation Flying car eVTOL 

分 类 号：O35[理学—流体力学]