支板/凹腔燃烧室混合与燃烧性能研究进展  

Research progress on mixing and combustion performance ofstrut/cavity-based combustor

作　　者：赵子健 刘朝阳[1] 黄伟[1] ZHAO Zijian;LIU Chaoyang;HUANG Wei(Hypersonic Technology Laboratory,College of Aerospace Engineering,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学空天科学学院高超声速技术实验室,长沙410073

出　　处：《航空学报》2024年第16期22-47,共26页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(12002373);湖南省自然科学基金(2021JJ40656);国防科技大学科研计划(ZK21-42)。

摘　　要：在高超声速飞行条件下,燃料在超燃冲压发动机燃烧室内的驻留时间非常短,燃料与氧化剂的充分混合、点火和维持稳定的燃烧是高超声速推进的关键。为了提高燃烧室中燃料的混合与燃烧性能,国内外研究人员将诸如支板、斜坡、凹腔、后向台阶等增混稳燃装置引入燃烧室,取得了一定成果。在以往的研究中,支板和凹腔在流场中形成的回流区能达到较好增混稳燃效果,受到了广泛的关注与拓展。本文综述了近年来支板、凹腔及支板-凹腔组合构型的国内外研究进展,并对相关研究的未来发展方向作出了展望。Under hypersonic flight conditions,the residence time of fuel in the scramjet combustor is extremely short,while sufficient mixing,ignition,and stable combustion of fuel and oxidants are important issues for hypersonic propul⁃sion.To improve the mixing and combustion performance of fuel in the combustion chamber,domestic and foreign re⁃searchers have introduced mixing and combustion stabilization devices such as struts,ramps,cavities,and backward steps into the combustor,and have obtained certain achievements.In previous studies,the recirculating zone formed by the strut and cavity in the flow field can achieve good mixing and combustion stabilization performance,receiving widespread attention and expansion.This paper reviews the recent research progress on strut,cavity,and strut-cavity combination configurations around the world,and explores the future development direction of related research.

关 键 词：超燃冲压发动机 混合增强 火焰稳定 支板 凹腔 

分 类 号：V43[航空宇航科学与技术—航空宇航推进理论与工程]