The morphing tandem-wing unmanned aerial vehicle (UAV) has become one of research hotspots for its advantages of small lateral size and easy to transportation. However, there are few studies on dynamic sweeping motion on unsteady aerodynamic performance of morphing tandem-wing UAV. In this paper, the effects of different sweeping period on the unsteady aerodynamic performance of the front and rear wings of a tandem-wing UAV are investigated by numerical simulation. Firstly, the numerical methods are validated by a rectangular flat wing case and a wing with NACA0012 airfoil pitching case. Then, unsteady numerical simulation of the transition from the tandem-wing Configuration I with no sweep Angle to Configuration II of front wing with 30° backward sweep Angle and rear wing with 30° forward sweep Angle, and Configuration III of both front wing and rear wing with 30° backward sweep Angle is carried out. How different sweeping period affect instantaneous lift coefficient and drag coefficient of tandem-wing is analyzed in detail. The results shows that the sweeping period mainly affects the instantaneous aerodynamic force of tandem-wing through the additional motion effect. At smaller sweeping period, as for Configuration II, the aerodynamic force generated by the additional movement of front and rear wings cancels each other, resulting in greater instantaneous lift coefficient and instantaneous drag coefficient, compared with Configuration III.
Effect of Sweeping Period on Unsteady Aerodynamic Performance of Morphing Tandem-Wing Unmanned Aerial Vehicle
Lect. Notes Electrical Eng.
International Conference on Autonomous Unmanned Systems ; 2023 ; Nanjing, China September 09, 2023 - September 11, 2023
Proceedings of 3rd 2023 International Conference on Autonomous Unmanned Systems (3rd ICAUS 2023) ; Chapter : 47 ; 503-516
2024-04-25
14 pages
Article/Chapter (Book)
Electronic Resource
English
Unsteady Aerodynamics of a Morphing Tandem-Wing Unmanned Aerial Vehicle
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