基于风洞试验和CFD计算的折叠翼气动特性研究

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Abstract 采用风洞试验和数值方法对影响折叠翼外翼气动特性的因素进行研究，包括外翼折叠角、攻角、马赫数、气流滚转角、弹身截短长度等。研究表明：“×”型状态下折叠角为30°时外翼载荷最大；外翼载荷对马赫数变化不敏感，马赫数为1.2时气动力系数最大；弹身截短的长度取决于头部压力区是否会影响到尾翼区；不同气流滚转角下的外翼载荷大小与外翼当地气流偏角正相关。研究结论可作为折叠翼简化设计的依据。

Key words： folding wing aerodynamic characteristic wind tunnel experiment numerical method aerodynamic roll angle

Received: 14 August 2020 Published: 25 March 2021

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https://www.qk.sjtu.edu.cn/ktfy/EN/ OR https://www.qk.sjtu.edu.cn/ktfy/EN/Y2021/V4/I1/77

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