Effect of wing dihedral and anhedral angles on hypersonic aerodynamic characteristics of high-pressure capturing wing configuration

被引：0
|
作者：
Chang S. [1 ]
Xiao Y. [1 ,2 ]
Li G. [1 ,2 ]
Tian Z. [3 ]
Zhang K. [1 ,2 ]
Cui K. [1 ,2 ]
机构：
[1] State Key Laboratory of High-Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences, Beijing
[2] School of Engineering Science, University of Chinese Academy of Sciences, Beijing
[3] Wide Field Flight Engineering Science and Application Center, Institute of Mechanics, Chinese Academy of Sciences, Beijing
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2023年 / 44卷 / 08期
基金：
中国国家自然科学基金;
关键词：
aerodynamic characteristics; dihedral/anhedral angles; High-pressure Capturing Wing (HCW); hypersonic; stability;
D O I：
10.7527/S1000-6893.2022.27349
中图分类号：
学科分类号：
摘要：
To study the influence of wing dihedral/anhedral angle changes on the hypersonic aerodynamic characteristics of the High-pressure Capturing Wing （HCW） configuration，we studied the variation law of the lift-drag characteristics，and longitudinal and lateral-directional stability with the change of wing dihedral/anhedral angles based on a HCW concept configuration under the computation conditions of Mach number 6 and an altitude of 30 km. The design variables are dihedral/anhedral angles of HCW and delta wings，and some techniques，such as the uniform experimental design method，numerical simulation method，and Kriging modeling method，were utilized in the analysis. The results show that the lift，drag，and lift-drag ratio have similar variation trends with the change of wing dihedral/anhedral angles，and are more sensitive to the change of the dihedral angle. At small angles of attack，the wing dihedral significantly reduces the lift-drag ratio，while the anhedral slightly increases and then slowly decreases it. At large angles of attack，the wing dihedral/anhedral angles have less influence on the lift-drag ratio. The longitudinal stability is mainly affected by the dihedral/anhedral angles of the delta wing. Specifically，the delta wing dihedral decreases the longitudinal stability，while the anhedral hardly affects it. Both the wing dihedral and anhedral angles improve the directional stability，with the effect of the anhedral stronger. The wing dihedral raises the lateral stability，while the anhedral lowers it. However，at a large angle of attack，the large dihedral angle of the delta wing may lead to a decrease in lateral stability. © 2023 AAAS Press of Chinese Society of Aeronautics and Astronautics. All rights reserved.
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