Design, optimization and application of two-element airfoils for tactical UAV

Advances in Mechanical Engineering

Research Article

Wang Shunshun¹  Guo Zheng² 

[1] College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China;Guo Zheng, College of Aerospace Science and Engineering, National University of Defense Technology, Kaifu District, 31th Road, Changsha, Hunan 410000, China. Email: ;

关键词: Aerodynamic optimization;    tactical UAV;    two-element airfoil;    low speed airfoil;   

DOI  :  10.1177/16878132221137027

 received in 2022-05-26, accepted in 2022-10-18,  发布年份 2022

来源: Sage Journals

【 摘 要 】

Owning to the requirements for longer endurance, larger payloads as well as simpler mechanical structure of tactical UAV, the two-element airfoil technology is introduced. Firstly, the aerodynamic characteristics of five common low-speed airfoils are calculated and compared. The airfoil with good aerodynamic performance after segmentation is selected as initial airfoil. Then, the influence of different segmentation types on the aerodynamic characteristics of airfoils is analyzed, and the segmentation type which brings the best aerodynamic benefits is selected. The slot parameters are optimized by NSGA-II optimization algorithm under cruising, take-off, and a large angle of attack states to obtain a high-performance self-adaption tactical UAV airfoil. Finally, the new airfoil is applied to Sparrow-hawk tactical UAV, the CL1.5/CD of acceleration state increases 15.5%, the CL of large angle of attack increases 20.4% and the CL1.5/CD of cruising state after enlarge the aspect ratio increase12.3%.

【 授权许可】

CC BY   
© The Author(s) 2022

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