suction lift

基本解释

There is zero leading-edge suction, and the lift and induced drag are simply .
平板机翼没有前缘吸力，并且升力和诱导阻力都比较简单。
The cause of the reduction of lift lies in that, the losses of suction at upper surface are more than the increases of pressure at lower surface.
升力系数的减小主要是由于地面效应引起流场改变，下翼面压力的增加量小于上翼面吸力的减小量引起；
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Thus, in the worst case of zero leading-edge suction, the drag-due-to-lift factor K is simply the inverse of the slope of the life curve (in radians), as previously determined.
因此，零前缘吸力的最坏情况是：由升力引起的阻力系数K是前面确定的升力曲线斜率的倒数（弧度制）。