Scholarlink

This paper focused on a civil aircraft with the aim of improving the takeoff lift-to-drag ratio through the aerodynamic design of symmetric downward deflection of bilateral ailerons. The drag reduction benefits corresponding to various ailerons deflections were computed and validated via wind tunnel experiments. Additionally, the impacts of factors such as trim and gaps at the ends of the ailerons on the drag reduction benefits were analyzed. The relevant conclusions suggested that the influence of trim and gaps must be considered in the design of ailerons downward deflection. Based on these conclusions, the optimal deflection angle of ailerons was determined, and drag coefficient of the total aircraft was reduced by about 0.69%.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Aerodynamic Design and Experimental Validation of Ailerons Downward Deflection in the Takeoff Configuration of a Civil Aircraft

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Wenkui Wang,
  • Kun Mao,
  • Meihong Zhang,
  • Huiwen Xu

摘要

This paper focused on a civil aircraft with the aim of improving the takeoff lift-to-drag ratio through the aerodynamic design of symmetric downward deflection of bilateral ailerons. The drag reduction benefits corresponding to various ailerons deflections were computed and validated via wind tunnel experiments. Additionally, the impacts of factors such as trim and gaps at the ends of the ailerons on the drag reduction benefits were analyzed. The relevant conclusions suggested that the influence of trim and gaps must be considered in the design of ailerons downward deflection. Based on these conclusions, the optimal deflection angle of ailerons was determined, and drag coefficient of the total aircraft was reduced by about 0.69%.