翼身融合布局飞机机体-发动机气动干扰效应

翼身融合（BWB）布局飞机是一种相对较新的飞行器概念，具有商业运输飞机的潜在用途。研究表明，翼身融合布局客机可获得比常规布局客机更好的性能。但是，由于各方面限制，BWB飞机不宜使用传统的机翼安装或机身安装的发动机布局，发动机背部安装成为首选布局。然而，背部安装发动机容易产生激波、分离、进气畸变等空气动力干扰问题，发动机与机身一体化的气动设计已成为BWB飞机发展的关键技术。针对BWB布局飞机的机体和发动机之间的气动干扰进行了数值研究，结果表明，背部安装发动机对BWB布局飞机的全机气动特性和发动机本身的推力性能都会产生较为明显的影响。

Fuselage-engine aerodynamic interference effects of blended-wing-body aircraft

Blended-Wing-Body (BWB) configuration aircraft is a relatively new concept of aircraft, with the potential use in commercial transport aircraft. Research shows better performance in BWB aircraft than in normal configurations. However, due to various restrictions, BWB aircraft is not suitable for the use of traditional wing-mounted or fuselage-mounted engine layout, preferring the back-mounted engine. However, the back-mounted engine results in some aerodynamic interference problems, such as shock waves, separation, and inlet distortion. The integrated aerodynamic design of engine and fuselage has become the key technology for BWB aircraft development. In this paper, a numerical study is carried out on the aerodynamic interference between the fuselage and the engine of a BWB layout aircraft. The results show that the back-mounted engine has a significant impact on the aerodynamic characteristics of the BWB configuration aircraft and the thrust performance of the engine itself.