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首页> 外文期刊>Russian Aeronautics >AERO- AND GAS-DYNAMICS OF FLIGHT VEHICLES AND THEIR ENGINES: IMPROVEMENT OF AERODYNAMIC CHARACTERISTICS OF AN AIRFOIL BY INTRODUCTION OF DISTRIBUTED BOUNDARY LAYER SUCTION
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AERO- AND GAS-DYNAMICS OF FLIGHT VEHICLES AND THEIR ENGINES: IMPROVEMENT OF AERODYNAMIC CHARACTERISTICS OF AN AIRFOIL BY INTRODUCTION OF DISTRIBUTED BOUNDARY LAYER SUCTION

机译：飞行器及其引擎的空气和气体动力学：通过引入边界层吸力来改善翼型的空气动力学特性

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摘要

We study a problem on improvement of aerodynamic characteristics of an airfoil by introduction of a permeable section, where the distributed suction of a boundary layer (BL) is executed. We set and solve the problem of minimization of the sum of airfoil aerodynamic drag coefficients for two extreme angles of attack provided that the separation of a boundary layer is absent. We show numerically that the boundary layer separation is absent throughout the entire range of angles of attack. We present some examples of improving the aerodynamic airfoil characteristics and demonstrate the effectiveness of using boundary layer suction.
机译：我们研究了通过引入可渗透部分来改善翼型的空气动力学特性的问题，在该可渗透部分中执行了边界层（BL）的分布式抽吸。我们设置并解决了在两个极端攻角条件下不使边界层分离的情况下使翼型气动阻力系数之和最小的问题。我们用数字显示在整个攻角范围内都没有边界层分离。我们提供了一些改进空气动力学翼型特性的示例，并演示了使用边界层吸力的有效性。

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