航空学报2025，Vol.46Issue(20)：88-108,21.DOI:10.7527/S1000-6893.2025.31592
发动机几何参数对超声速民机声爆特性的影响
Impact of engine geometric parameters on sonic boom characteristics of supersonic civil aircraft
摘要
Abstract
To mitigate the impact of engines on sonic booms,recent low-boom supersonic civil aircraft layouts both domestically and internationally have primarily adopted over-wing or tail-sitting engine configurations.However,these layouts insufficiently exploit the integrated design effects of supersonic aircraft and engines,adversely affecting the overall lift to drag ratio of the aircraft.Moreover,existing research on the influence of engines on sonic booms are in-adequate.This paper explores an integrated design concept to devise an under-wing engine layout.A three-dimensional inward turning inlet is employed as the flow capture device for the integrated design of supersonic civil air-craft and engines,and controlling the sonic boom by adjusting the leading-edge curve and the shape parameters of cowl.The"BoomProp"program is utilized to predict and analyze the impact of engine geometric parameters and the installation positions of engine on the sonic boom characteristics of supersonic civil aircraft.The results indicate that optimizing the leading-edge curve,modifying the shape parameters of the cowl,and adjusting the installation position of the engine can effectively reduce the overall sound boom signature of the aircraft.关键词
超声速民机/气动布局/声爆/飞发一体化/三维内转进气道Key words
supersonic civil aircraft/aerodynamic layout/sonic boom/aircraft and engine integration/three-dimensional inward turning inlet分类
航空航天引用本文复制引用
贡天宇,单程军,易理哲,龙垚松,成忠涛..发动机几何参数对超声速民机声爆特性的影响[J].航空学报,2025,46(20):88-108,21.基金项目
国家自然科学基金(61903146) National Natural Science Foundation of China(61903146) （61903146）
