论文部分内容阅读
利用新技术、新措施、新方法进行增升研究是飞行器布局研究的重要课题之一。作者结合某型运输机在改型中需要进行增升的工程应用背景,通过二元翼型的测力、测压及流动显示试验研究,详细研究了格尼襟翼的增升机理和对该运输机翼型的增升效果。研究结果表明,对该运输机,格尼襟翼的最佳高度为当地弦长的2%,升阻比最大可增加13%左右,因此可以满足该运输机改型的需要。同时,格尼襟翼的增升方式具有较好的推广应用价值。
The use of new technologies, new measures, new methods to enhance research aircraft layout is one of the important issues. Based on the engineering application background of a type of transport aircraft that needs to be upgraded in retrofitting, this paper studies the lifting mechanism of Gurney flaps and the research on the transport aircraft Airfoil increase effect. The results show that for this transporter, the optimal height of Gurney flap is 2% of the local chord length, and the ratio of lift to drag can be increased by about 13% at maximum, so the need of retrofitting the transporter can be met. At the same time, the raising of Gurney flaps has a good promotion and application value.