机翼曲面成型技术对气动特性影响的研究

增升减阻一直是空气动力设计工作者追求的目标。机翼设计是飞机气动设计的核心，而机翼控制剖面间过渡方式是机翼设计中十分有效的增升减阻措施。首先对飞机翼根两剖面没有添加约束的机翼外形进行了详尽的气动分析计算，针对分析结果出现的问题，重新确定了设计思路和方案，探讨了在翼根两剖面翼型和位置都不变的情况下两翼型之间的过渡对机翼气动性能的影响，研究了如何过渡才能改进飞机的气动特性，最后将三种配置的设计结果进行了对比，获得了翼根曲面过渡几何参数影响的初步规律。对比结果表明，以加入过渡约束的上凸与线化过渡的结果取得了十分理想的改进结果。

Research on Aerodynamic Performance Impact on Modeling Surfaces of Wing

The unique aim of aerodynamic designer is always to enhance lift coefficient and reduce drag coefficient. Wing aerodynamic design is the core of aircraft aerodynamic design and controlling transition between the wing section is one of the effective measures to enhance lift coefficient and reduce drag coefficient. The article firstly analyzes the aerodynamic characteristic of state in detail that there are no constraint between the two sections at the root of the wing. According to result that is not very well, new plans and ideas are established. The aerodynamic performance of two other types between the two section is studied when the section of the wing is unchanged. How to improve the aerodynamic performance in terms of transition styles is learned. Finally, three distinguished results are compared and the preliminary regular pattern of the transition between the sections at the root of wing is achieved. The result demonstrates that it gets satisfactory results when using transition of raised curve and linear line. The wing using the transition of raised curve improves the aerodynamic performance, the drag coefficient of the wing drop 5 ＊ 10. Linear transition also enhances aerodynamic performance eliminates the shock wave and can meet the target of designation better.