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基于低雷诺数,应用二维CFD方法,对串置翼型的气动特性进行了数值模拟。比较了串置翼型布局与常规单独翼型的升阻特性。分析了翼差角度对串置翼升阻特性的影响,并且在保持鸭翼±5°偏角不变的同时,研究了两翼之间的距离以及安装的相对高度对整个串置翼型升阻特性的影响。发现上鸭翼与主翼相结合具有相对较高的最大升力系数和临界迎角,可以显著改善串置翼型的气动特性。
Based on the low Reynolds number, a two-dimensional CFD method is applied to simulate the aerodynamic characteristics of a series of airfoils. The lift-resistance characteristics of the serial airfoil layout and the conventional single airfoil are compared. The influence of wing angle on the lift-drag characteristics of a series of wings was analyzed. While maintaining the ± 5 ° declination angle of the canard wings, the distance between two wings and the relative height of the installed wings were studied. Effect of characteristics. It is found that the combination of the upper wing and the main wing has a relatively high maximum lift coefficient and critical angle of attack, which can significantly improve the aerodynamic characteristics of the serial airfoil.