基于遗传算法的负弯度翼型亚音速多点设计

针对飞翼布局飞机常用的负弯度翼型在单点优化设计时，缺乏对非设计点气动性能考虑的问题，建立了基于遗传算法的亚音速翼型多点设计优化平台，并将其应用于一个负弯度翼型的2点设计优化过程；结果表明，优化后的翼型与初始翼型相比，在巡航设计点和待机设计点的性能分别有了一定程度的改善，实现了多点设计的目的，也说明了所建立的翼型设计平台的可行性，为飞翼布局飞机的设计发展提供了良好的基础。

Subsonic Multi-point Design of A Reflex Foil Based on Genetic Algorithm

For reflex foil used in Blended Wing Body plane,when utilizing a single point design optimization to design an airfoil,a problem about the Absent consideration at off-design point often arises.This paper builds a subsonic airfoil multi-point design optimization process and applies it to a two-point design of a reflex foil.Results of this design process appear that,aerodynamic performances at the cruise design point and at the loiter design point have both been improved.The purpose of multi-point design has ...