舰载机增升装置对薄翼型升力系数的影响研究

描述了增升装置在提高舰载机薄翼型升力系数方面的作用,观察到大偏角前缘襟翼小迎角时对翼型升力曲线的影响,并通过与试验现象对比,初步探讨了非线性作用形成的可能机理。利用数值模拟方法,通过有限元计算软件对相同流场中多种增升装置的升力系数进行了模拟与比较,从而达到合理设计舰载战机翼型的目的。CFD计算结果表明,所设计的二维多段翼型有良好的气动特性,升力系数得到提高,具有较好的增升效果。

Research on the Impact of Carrier-Based Aircraft＇s High Lift Device on the Thin Airfoil＇s Lift Coefficient

This article describes how high lift devices increase the lift coefficient of carrier-based aircraft＇s thin airfoil. It founds the relation between the large rotation of the leading edge l ap and the airfoil lift curve slope. Then this article founds the possibly initial reason for this relation by the comparing of simulation results and real measured data. In this paper, the numerical simulations carried on a variety of lift devices by using Fluent software is to study the changes of lift coefficient in the same flow condition. This research helped us understand and predict the high-lift airflow characteristics about thin, carrier-based aircraft airfoils. The CFD numerical simulations indicate that： the designed airfoil has good aerodynamic characteristics and can increase the lift coefficient.