The invention relates to a universal laminar flow airfoil suitable for a medium-low speed unmanned aerial vehicle. The leading edge radius of the airfoil is 1% C, the maximum thickness of the airfoil is 18.45% C, the maximum thickness position is 40.34% C, the maximum camber of the airfoil is 2.95% C, and the maximum camber position is 57.46% C; wherein C is the chord length. The designed Reynolds number of the airfoil is 2 * 10 < 6 >, but the airfoil has better aerodynamic performance when the Reynolds number is 1 * 10 < 5 >-3 * 10 < 6 >. When the lift coefficient of the airfoil is 0.3-1.2, the resistance coefficient of the airfoil is superior to that of an NLF-0215 airfoil, and when the lift coefficient is designed to be 1.0, the range of a laminar flow area is larger than 60%.

    本申请涉及一种适用于中低速无人机的通用层流翼型,翼型的前缘半径1%C,翼型的最大厚度18.45%C,最大厚度位置40.34%C,翼型的最大弯度2.95%C,最大弯度位置57.46%C;其中C为弦长。该翼型设计雷诺数为2×106,但在1×105~3×106雷诺数都有较好的气动性能。该翼型在升力系数0.3~1.2时阻力系数优于NLF‑0215翼型,在设计升力系数为1.0附近层流区域范围超过60%。


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    Title :

    Universal laminar flow airfoil suitable for medium-low speed unmanned aerial vehicle


    Additional title:

    适用于中低速无人机的通用层流翼型


    Contributors:
    GUO ZHENG (author) / YU KE (author) / WANG SHUNSHUN (author) / YANG YUDAN (author) / WANG PENG (author) / LU YAFEI (author) / JIA GAOWEI (author) / DENG XIAOLONG (author) / HOU ZHONGXI (author)

    Publication date :

    2024-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64U



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