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仿鸟扑翼飞行器的气动性能分析
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北京市自然科学基金资助项目(9021723101)


Aerodynamic Performance Analysis of a Bird-like Flapping Wings
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    摘要:

    为研究仿鸟飞行器的气动性能,设计了一款新型仿鸟扑翼飞行器,利用Fluent中线弹性实体光顺法来分析周围气体对机翼的气动性能的影响。机翼上下扑动时,同时参与俯仰运动,内翼与外翼间也存在弯曲运动,周围流场的速度与压力都在变化,同时机翼的升、阻力系数随流场也在变化。仿真得到了机翼运动时,在一定流速、频率、定攻角范围内,升阻比、升力及阻力分别随流速、频率、攻角的变化规律。

    Abstract:

    In order to study the aerodynamic performance of the bird-like aircraft, a new bird-like flapping wing aircraft is designed. The Fluent mid-line elastic solid smoothing method was used to analyze the influence of surrounding gas on the aerodynamic performance of the wing. When the wing flapped up and down, it also participated in the pitching motion. There was also a bending motion between the inner wing and the outer wing. The speed and pressure of the surrounding flow field were changed and the coefficient of lift resistance of the wing was also changed with the flow field. The simulation results obtain the laws of the lift-to-drag ratio, lift and drag vary with the flow rate, frequency and angle of attack, as well as the angle of attack, speed and frequency, respectively, within a certain frequency range and within a certain frequency range.

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张后伟,侯悦民.仿鸟扑翼飞行器的气动性能分析[J].机床与液压,2020,48(3):28-33.
. Aerodynamic Performance Analysis of a Bird-like Flapping Wings[J]. Machine Tool & Hydraulics,2020,48(3):28-33

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  • 在线发布日期: 2020-04-23
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