The invention relates to a high-lift low-Reynolds-number single-section airfoil profile suitable for a low-speed unmanned aerial vehicle. The leading edge radius of the airfoil profile is 1% C, the maximum thickness of the airfoil profile is 13.50% C, the maximum thickness position of the airfoil profile is 29.96% C, the maximum camber of the airfoil profile is 6.14% C, and the maximum camber position of the airfoil profile is 54.34% C; wherein C is the chord length. The Reynolds number of the airfoil is designed to be 8 * 10 < 5 >, however, the airfoil serves as a large-lift slow-stall airfoil at the low Reynolds number, and the high-lift coefficient section of the airfoil can obtain a large cruise factor within the high lift range. The airfoil profile has high aerodynamic efficiency within the lift coefficient range of 1.2-1.4; the resistance coefficient and the lift-drag ratio of the airfoil profile are both superior to those of an FX63-137 airfoil profile when the lift coefficient is 1.0-1.7; and meanwhile, the maximum lift coefficient is slightly increased, the slow stall performance is maintained, and the head lowering torque is obviously reduced within the lift coefficient range of 1.0-1.4.

    本申请涉及一种适用于低速无人机的高升力较低雷诺数单段翼型,翼型的前缘半径1%C,翼型的最大厚度13.50%C,最大厚度位置29.96%C,翼型的最大弯度6.14%C,最大弯度位置54.34%C;其中C为弦长。该翼型设计雷诺数为8×105,但在较低雷诺数作为大升力缓失速翼型,翼型的高升力系数段可以在较高的升力范围内取得较大的巡航因子;该翼型在升力系数1.2~1.4范围内具有较高的气动效率;该翼型在升力系数为1.0~1.7时的阻力系数,升阻比均优于FX63‑137翼型;同时最大升力系数略有增加缓失速性能保持,低头力矩在升力系数为1.0~1.4范围内明显降低。


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    Titel :

    High-lift low-Reynolds-number single-section airfoil profile suitable for low-speed unmanned aerial vehicle


    Weitere Titelangaben:

    适用于低速无人机的高升力较低雷诺数单段翼型


    Beteiligte:
    GUO ZHENG (Autor:in) / YU KE (Autor:in) / WANG SHUNSHUN (Autor:in) / YANG YUDAN (Autor:in) / LU YAFEI (Autor:in) / CHEN QINGYANG (Autor:in) / JIA GAOWEI (Autor:in) / WANG YUJIE (Autor:in) / HOU ZHONGXI (Autor:in)

    Erscheinungsdatum :

    14.06.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64U



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