飞翼布局宽速域升阻性能分布规律研究  

Aerodynamic Optimization Workflow Study on Wide Speed Domain Flying Wing Configuration

作　　者：张文琦 宋敏华 王钢林 李岩 魏中成[2] 刘杰[2] Zhang Wenqi;Song Minhua;Wang Ganglin;Li Yan;Wei Zhongcheng;Liu Jie(Chinese Aeronautical Establishment,Beijing 100012,China;AVIC Chengdu Aircraft Design and Research Institute,Chengdu 610091,China)

机构地区：[1]中国航空研究院,北京100012 [2]成都飞机设计研究所,四川成都610091

出　　处：《航空科学技术》2024年第10期19-25,共7页Aeronautical Science & Technology

摘　　要：宽速域扁平无尾气动布局是高性能飞行器布局技术发展的重要方向。本文针对“λ翼”典型气动布局的宽速域升阻特性,利用智能化工作流嵌套及基于高可信度计算流体力学(CFD)的统计采样优化设计方法,开展了面向宽速域飞翼气动布局的多设计点设计优化采样,旨在探索该种布局在跨声速、超声速典型设计高度、速度状态下最大升阻比的分布规律。结果显示,在跨、超声速设计状态下,该种气动布局优化结果的最大升阻比随着气动布局全投影面积展弦比及超声速废阻系数变化具有明显的规律性,拟合公式对后续同类气动布局的设计参数选择具有一定的参考意义。The flat,tailless aerodynamic configuration with a wide speed domain is an important direction for the development of high-performance aircraft configuration technologies.This paper focuses on the lift-to-drag characteristics of the“λ-wing”typical aerodynamic configuration across a wide speed domain.Utilizing nested intelligent workflows and statistical sampling optimization design methods based on high-reliability computational fluid dynamics(CFD),this paper carried out multi-design point optimization sampling aimed at wide speed domain flying wing aerodynamic configurations.The purpose is to explore the distribution laws of the maximum lift-to-drag ratio for such configurations under typical transonic and supersonic design altitudes and speeds.The results show that at transonic and supersonic conditions,the maximum lift-to-drag ratio of the optimized aerodynamic configuration exhibits clear regularities as the aspect ratio of the total projected area and the supersonic drag coefficient change.The fitting formula can provide a reference for the selection of design parameters in subsequent similar aerodynamic configurations.

关 键 词：飞翼 宽速域 嵌套优化设计 气动布局设计 智能化工作流 

分 类 号：V221[航空宇航科学与技术—飞行器设计]