一种变形翼的气动特性数值模拟研究

Numerical Simulation of Aerodynamic Characteristics of a Deformable Wing

为研究可变形翼在动态变形过程中的气动特性,文中利用数值模拟软件FLUENT中的动网格技术,模拟了可变形翼在不同变形速度下的变展长、变后掠和变翼型等变形过程的气动特性。结果显示翼的不同变形方式和变形速度对翼的气动特性产生不同的影响,变展长受变形速度的影响不大,而变后掠和变翼型对变形速度比较敏感。分析结果对可变形飞行器的研究具有重要的意义。

In order to study the aerodynamic characteristics of deformable wing in the process of dynamic deformation, the moving mesh technique in numerical simulation software FLUENT was used to simulate the aerodynamic characteristic of deformable wing at different de- formation speed in different deformation process, such as variable span, variable sweep and variable airfoil. The resuhs showed that differ- ent deformation mode and deformation speed of the wing had different impact on the aerodynamic characteristics of the wing, and variable span had little effect on deformation speed. The variable sweep and variable airfoil were sensitive to it. The analysis results were of great significance to the study of deformable aerocrafe.