伸缩翼气动特性估算方法研究

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。

Investigation of an aerodynamic characteristic evaluation method for the deformable wing

Consider that the traditional method can’t estimate the aerodynamic characteristics of the deformable wing when its chord length changes along the wingspan,advance a method that estimates the aerodynamic characteristics based on the ameliorated volute method and the lift plane theory.First,list the elements of this method,then list the process and the expressions of the method,at the end,analyze the data and paint the diversification curves of the deformable wing’s lift force.Contrast it results with the results based on the ANSYS CFD.It shows that the method can evaluate the diversification of the lift force exactly,it is avail for shape design of the deformable wing.