伸缩翼气动特性估算方法研究

来源 :飞行力学 | 被引量 : 0次 | 上传用户:shanlin_shanlin
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针对传统方法不能够估算沿展长方向翼型弦长不断连续变化的伸缩翼气动特性的问题,提出了一种基于升力面理论和改进涡格法的气动估算方法。首先给出了该气动估算方法的原理,在此基础上推算出了气动估算方法的步骤和计算公式,最后进行数据处理,给出了伸缩翼展开过程中升力系数的变化曲线,并与AN-SYS CFD的计算结果进行了对比。结果表明,该气动估算方法能够很好地估算伸缩翼展开过程中的升力系数变化特性,对伸缩翼机翼外形设计能够提供有效的依据。 Aiming at the problem that the traditional method can not estimate the aerodynamic characteristics of the wing continuously changing continuously along the length and direction of the airfoil, a method of aerodynamic estimation based on the theory of lift surface and the improved vortex method is proposed. First of all, the principle of the aerodynamic estimation method is given. On this basis, the steps and formulas of the aerodynamic estimation method are deduced. Finally, the data processing is performed and the variation curve of the lift coefficient during the expansion process of the telescopic wing is given. The results of SYS CFD are compared. The results show that the aerodynamic estimation method can well estimate the variation characteristics of the lift coefficient during the deployment of the retractable wing, and provide an effective basis for the design of the retractable wing.
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