Comparison of two design methods of aerodynamic biobjectives for airfoil and wing shapes

作     者：ZHU Ziqiang FU Hongyan LIU Hang WANG Xiaolu 

作者机构：Beijing University of Aeronautics and Astronautics Beijing 100083 China Beijing University of Aeronautics and Astronautics Beijing 100083 China Beijing University of Aeronautics and Astronautics Beijing 100083 China Beijing University of Aeronautics and Astronautics Beijing 100083 China 

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

年 卷 期：2004年第47卷第2期

页      面：203-215页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：A51004 10272013 

主　　题：simplified adaptive wing, biobjective optimization, airfoil and wing design. 

摘      要：A simplified adaptive wing, which deflects its leading edge and trailing edge flaps to vary its shape, is calculated to investigate the potential aerodynamic gains and compared with a biobjective optimization (BO) wing in the present paper. In subsonic-transonic flights the deflection angle of a flap is determined through optimization using a deterministic method. In supersonic flight the flaps are not deflected due to the requirement of having a minimum drag. For comparison the aerodynamic characteristics of a BO airfoil and wing is calculated. A parallel genetic algorithm is used in BO. Euler equations served as governing equations in flow field calculation. Numerical results in both 2D (airfoil) and 3D (wing) cases show that aerodynamic performances of the two design airfoils and wings are much better than those of the original ones, with the adaptive design one the best. Keywords simplified adaptive wing - biobjective optimization - airfoil and wing design