宽速域超燃冲压发动机流动燃烧过程研究进展  

Flow and combustion process for wide speed range scramjet:Review

作　　者：纪鉴恒 蔡尊 王泰宇 孙明波[1] 王振国[1] JI Jianheng;CAI Zun;WANG Taiyu;SUN Mingbo;WANG Zhenguo(Hypersonic Technology Laboratory,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学高超声速技术实验室,长沙410073

出　　处：《航空学报》2024年第3期19-45,共27页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(12272408,11925207,11902353)。

摘　　要：随着对未来高超声速飞行器机动飞行需求的不断提升,发展宽速域超燃冲压发动机技术显得尤为重要,而宽范围来流条件将使得燃烧室内的流动、混合及燃烧等过程产生显著变化。尤其是超声速燃烧主要由混合过程所主导,呈现为典型的扩散火焰,来流条件的变化对燃料输运及混合过程影响极大,混合状态的改变进而会引起燃烧不稳定等一系列非稳态燃烧现象。本文对宽速域超燃冲压发动机流动燃烧过程进行了综述分析。首先,对超燃冲压发动机基本工作过程及应用进行了简要介绍;然后,分别论述了国内外关于低马赫数来流、高马赫数来流以及宽速域来流典型条件下超声速流动燃烧过程中亟待解决的关键问题和研究进展;最后,进行了总结并对后续研究提出了建议。The increasing demand for future hypersonic vehicle maneuvers heightens the importance of the wide speed range scramjet technology development.However,the wide-range inflow conditions will cause significant changes in the flow,mixing,and combustion processes.In particular,supersonic combustion is a typical diffusion flame dominated by the mixing process,and changes in the inflow conditions have a considerable impact on the fuel transport and mixing process,which can lead to a series of unsteady combustion phenomena.This paper reviews and analyzes the flow and combustion process of the wide speed range scramjet.Firstly,the basic working process and applications of scramjets are briefly introduced.Then the key problems in and research on the supersonic flow and combustion process with the low Mach number inflow,high Mach number inflow and wide speed range inflow at home and abroad are discussed,followed finally by a summary and suggestions for follow-up research.

关 键 词：宽速域 超燃冲压发动机 超声速燃烧 低马赫数 高马赫数 

分 类 号：V235.21[航空宇航科学与技术—航空宇航推进理论与工程]