针对在翼型后缘增加锯齿襟翼与格尼襟翼的差异性,以及二者对翼型的空气动力特性有何改善等问题,在某民用运输机机翼翼型下表面后缘处增加锯齿襟翼,对其进行了空气动力特性试验和计算。结果表明,增加一定高度的后缘锯齿襟翼,能够减弱和改变翼型下表面后缘处气流的流动,从而减少和改变翼型下表面尾涡的涡量和涡量变化率,达到增加翼型升力、减小翼型阻力的目的。 In view of the difference between the increase of serrated flaps and Gurney flaps on the trailing edge of the airfoil and the improvement of the aerodynamic characteristics of the airfoils by the two, etc., a serrated placket is added at the trailing edge of the lower wing surface of a civilian transport aircraft Wing, its aerodynamic characteristics of the test and calculation. The results show that increasing trailing edge serrated flaps with a certain height can reduce and change the air flow at the trailing edge of the lower surface of the airfoil so as to reduce and change the vorticity and vorticity of the tail vortex on the lower surface of the airfoil, Type of lift, reducing the airfoil resistance purposes.