超声速民机和降低音爆研究  

Study of supersonic commercial transport and reduction of sonic boom

作　　者：朱自强[1] 兰世隆[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191

出　　处：《航空学报》2015年第8期2507-2528,共22页Acta Aeronautica et Astronautica Sinica

摘　　要：本文在简述超声速民机(SCT)的发展历史后,介绍了正在研制的几种超声速公务机的特点和未来(2020—2035年)超声速小型民机概念研究的进展及其可能的外形特点。由于降低音爆是当前发展SCT的首要任务之一,因此重点讨论了当前降低音爆的优化设计方法,主要包括:基于线性理论的设计方法;基于Euler解算器(Cart3D)和伴随方法的低音爆反设计方法;广义Burgers方程描述波的传播及其求解方法;以音爆造成地面噪声最小为目标,直接耦合音爆传播和CFD流场解的优化设计方法;可用于概念设计的多重优化设计方法等。Following a brief introduction of the development history of the supersonic commercial transport （SOT）, the char- acteristics of several developing supersonic business jets are given. The conceptual design research of the small supersonic commercial transport being served during the period 2020--2035 and their possible configurations and features are de- scribed, too. Due to sonic boom reduction being one of the main tasks for developing SOT, some optimal design methods for reducing sonic boom are discussed in detail in the present paper, which are the design method based on linearized theory, sonic boom mitigation method using inverse design of coupling Euler solver （Cart3D） and adjoint method, the approach of advanced sonic boom prediction using augmented Burgers equation, the formulation that boom propagation and CFD are for- mally coupled for the purpose of obtaining gradients of a ground-based objective with respect to the aircraft shape design variables, as well as the optimization and adjoint-based CFD for the conceptual design of low sonic boom aircraft.

关 键 词：超声速民机 音爆 降低音爆 优化设计 CFD 

分 类 号：V211.31[航空宇航科学与技术—航空宇航推进理论与工程]