摘要
采用DISC方法耦合N-S方程求解程序研究了无尾布局翼型的设计。通过NLF1015,RAE2822翼型的反设计表明,该方法可用于亚、跨声速翼型设计,具有简单、计算量小的优点。完成了翼型改进和新翼型设计,对某BWB飞机内翼段翼型进行了改进设计,采用人工干预对现有翼型压力分布进行局部修正,达到快速削弱激波、改善翼型气动性能的目的;针对小展弦比翼身融合布局内翼段新翼型设计,采用基于多目标多约束压力分布优化的设计思想,得到满足气动和几何约束的目标压力分布。设计结果表明,数值优化目标压力分布方法较易满足总体与气动的设计目标和约束。
The DISC （Direct Iterative Surface Curvature） algorithm couples with Navier-Stokes equations are used to design airfoils for tailless configurations. The results of NLF1015 and RAE2822 show that the DISC algorithm is efficient for subsonic and transonic airfoil design. For airfoil redesign, pressure distributions in the shock regions of the BWB inboard airfoil are modified in order to reduce wave drag, and the DISC algorithm is used to re- design the airfoil. For new airfoil design, the Genetic Aigorithm（GA） has been applied to optimize target pressure distributions with aerodynamic and geometric constrains, once the target pressure distributions are obtained, the corresponding airfoil can be gained by the DISC algorithm, the inboard airfoil of low aspect ratio tailless configuration has been studied, the design result indicates the method is feasible and efficient.
出处
《飞行力学》
CSCD
北大核心
2011年第4期49-52,共4页
Flight Dynamics
关键词
反设计
DISC算法
无尾布局
翼型设计
inverse design
DISC algorithm
tailless configuration
airfoil design
