In this work, computational fluid dynamics (CFD) and momentum source methods are combined to perform aerodynamic characteristic analysis and to determine the influence of aerodynamic layout parameters on the design of a quad tiltrotor aircraft. First, a numerical method is established to simulate the whole-aircraft interference flow field of a quad tiltrotor aircraft. Then, the aerodynamic characteristics of the rear rotor under various interferences are analyzed based on the established CFD method, and the interference mechanism of the quad tiltrotor aircraft explored. Finally, an influence analysis of parameters under different rotor rotation direction combinations, wing installation angle, rotor transverse distance, and rotor longitudinal distance are carried out. The numerical results indicate that the aerodynamic characteristics of the rear rotors are greatly affected by whole aircraft interference in forward flight, and that the thrust of the rear rotor is reduced by 36.7% relative to an isolated rotor. The left rotors and right rotors rotate in opposite directions, which is conducive to greater wing lift. Increasing the longitudinal and transverse distance between the front and rear rotors can reduce interference of the front wings with the rear wings and improve the aerodynamic characteristics of the rear wings.
Analysis of Aerodynamic Characteristics and Influence of Parameters of the Quad Tiltrotor Aircraft
Lect. Notes Electrical Eng.
Asia-Pacific International Symposium on Aerospace Technology ; 2021 ; Korea (Republic of) November 15, 2021 - November 17, 2021
The Proceedings of the 2021 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2021), Volume 1 ; Kapitel : 10 ; 131-145
2022-08-31
15 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Analyses on Aerodynamic Interactions of Quad-Tiltrotor Aircraft with Variable RPM and Diameter
Springer Verlag | 2022
|Quad-Tiltrotor – modelling and control
Taylor & Francis Verlag | 2017
|