乘波构形和乘波飞行器研究综述

乘波构形的特点是高升阻比,下表面上的流动是均匀的,因此是推进系统/机身一体化设计的理想候选构形.乘波飞行器是源于乘波构形的高超音速飞行器,利用了乘波构形的高升阻比,并可为吸气发动机提供已知的均匀流场.本文比较全面地总结了乘波构形的生成方法和乘波飞行器的设计方法,介绍了乘波构形的优化方法及影响因素,给出了优化的乘波构形, 并介绍了乘波飞行器的研究进展,提出了今后的研究重点.

AN OVERVIEW OF THE RESEARCH ON WAVERIDERS AND WAVERIDER-DERIVED HYPERSONIC VEHICLES

The principal advantages of waveriders are the high lift-to-drag ratio at the design point and the uniform flowfield on the undersurface. So waveriders are important candidate configurations in the propul-sion/airframe integration design for airbreathing hypersonic vehicles. The waverider-derived hypersonic vehicles enjoy the high lift-to-drag ratio at a high coefficient of lift, and may provide a known uniform flowfield for an airbreathing engine. This paper summarizes the generation methods of waveriders and waverider-derived hypersonic vehicles, and the optimization methods of waveriders and the influential factors in the process of optimization, gives some optimized waveriders, and briefly reviews the research progresses of waverider-derived hypersonic vehicles. The paper concludes with a discussion of some critical issues for the further research of waveriders and waverider-derived hypersonic vehicles.