Multi-objective optimization of shock control bump on a supercritical wing

作     者：TIAN Yun LIU PeiQing LI Zhi 

作者机构：School of Aeronautical Science and Engineering Beihang University 

基　　金：European Commission  EC 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2014年第57卷第1期

页      码：192-202页

摘      要：Based on the supercritical ＂wingl＂ which was released in the DPW-III conference, multi-objective optimization has been done to increase the lift-drag ratio at cruise condition and improve transonic buffet boundary and drag-rise performance. Hicks-Henne shape functions are used to represent the bump shape. In the design optimization to increase lift-drag ratio, the objectives involve the cruise point and three other off-design points nearby. In the other optimization process to improve buffet and drag-rise performance, three buffet onset points near the cruise point and one drag-rise point are selected as the design points. Non-dominating sort genetic algorithm II （NSGA-II） is used in both processes. Additionally, individual analysis for every selected point on the Pareto frontier is conducted in order to avoid local convergence and achieve global optimum. Re- sults of optimization for aerodynamic efficiency show a decrease of 11 counts in drag at the cruise point. Drag at nearby off-design points are also reduced to some extent. Similar approaches are made to improve buffet and drag-rise characteristics, resulting in significant improvements in both ways.

主 题 词：shock control bump lift-drag ratio buffet drag-rise characteristics flow control 

学科分类：08[工学] 082501[082501] 0825[工学-环境科学与工程类] 

核心收录：

D　O　I：10.1007/s11431-013-5410-3

馆 藏 号：203127327...