高阶弯曲激波理论及其典型应用研究  

Research on high-order curved shock theory and its typical application

作　　者：施崇广 汤祎麒 程剑锐 张涛 朱呈祥 尤延铖 Shi Chongguang;Tang Yiqi;Cheng Jianrui;Zhang Tao;Zhu Chengxiang;You Yancheng(School of Aerospace Engineering,Xiamen University,Xiamen 361005,China)

机构地区：[1]厦门大学航空航天学院,厦门361005

出　　处：《空天技术》2022年第1期27-38,共12页Aerospace Technology

摘　　要：高超声速飞行器高度一体化的气动反设计需求使得传统的直线型激波理论已经难以适用,从理论、方法和应用三个层面对开展的高阶弯曲激波理论相关研究进行了介绍。在理论方面,将弯曲激波理论向高阶领域拓展,为超声速流场的设计与分析奠定了理论基础;在方法方面,基于流线-特征线坐标系提出了弯曲流线特征线法,实现了全流场气动参数及其梯度的高精度、高效率求解;在应用方面,采用弯曲激波理论对高超声速内流中的典型流动进行了建模与分析,实现了复杂弯曲激波流动的高精度描述。具体包括,建立了弯曲激波马赫反射的理论模型,双波马赫反射的理论模型,弯曲入射激波/边界层干扰的理论模型。研究高阶弯曲激波理论体系对深入了解超声速流动的物理本质具有重要意义,也为未来高超声速内外流的气动反设计提供了理论及方法支撑。The classical oblique shock theory is insufficient to meet requirements of the inverse design of highly integrated hypersonic vehicles.Researches on high-order curved shock theory are introduced from theory,method and applications.In the aspect of theory,the curved shock theory is extended to the high-order field,which builds a theoretical foundation for the design and analysis of supersonic flow field.In the aspect of method,the method of curved-shock characteristics is proposed based on the streamline-characteristic coordinate system.With this method,the aerodynamic parameters and their gradients in the supersonic flow field can be solved accurately and efficiently.In the aspect of applications,the typical flow structures in supersonic flow are modeled and analyzed by using the curved shock theory.These models including curved-shock Mach reflection model,double-shock Mach reflection model and curved shock/boundary layer interaction model illustrate the complex flow patterns behind curved shocks with high precision.The system of high-order curved shock theory introduced is of great significance to deeply understand the physical properties of supersonic flow and provides theoretical and methodological supports for the aerodynamic inverse design of hypersonic vehicles in the future.

关 键 词：弯曲激波 激波反射 高阶 激波/边界层干扰 超声速流场 高超声速飞行器 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程] O354.5[理学—流体力学]