基于斜坡和波纹壁的超声速混合增强技术研究进展  

Research Progress of Supersonic Jet Mixing Enhancement Technology Based on Slope and Wavy Wall

作　　者：王若榕 郭振云[1] 黄伟[1] Wang Ruorong;Guo Zhenyun;Huang Wei(Science and Technology on Scramjet Laboratory,College of Aerospace Science and 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冲压发动机技术重点实验室,长沙410073

出　　处：《航空兵器》2023年第4期106-114,共9页Aero Weaponry

基　　金：湖南省杰出青年基金项目(2021JJ10045)。

摘　　要：随着超燃冲压发动机技术的飞速发展,对在燃烧室内驻留时间极短的燃料射流与超声速空气来流的充分掺混与高效燃烧的要求越来越高,为解决上述问题,需要研究出一套稳定、高效的喷注方案,因此,超声速燃料的混合增强策略逐渐成为国内外航空航天学者的研究热点。混合增强方法按照机理分为被动混合增强和主动混合增强。本文主要针对被动混合增强方法中的斜坡和波纹壁激波发生器,分别梳理总结了其促进混合增强的原理和特点,并对斜坡和波纹壁组合混合增强技术的研究进展进行了概述,最后对各种混合增强方式的未来发展趋势进行了展望。With the rapid development of scramjet technology,the requirement of full mixing and efficient combustion of fuel jet and supersonic air flow with very short residence time in the combustion chamber is becoming much higher.In order to solve the above problems,it is necessary to develop a set of stable and efficient injection scheme.Therefore,the mixing enhancement strategy of supersonic fuel has gradually become a research focus of aerospace scholars at home and abroad.Mixed enhancement methods can be divided into passive mixed enhancement and active mixed enhancement according to their mechanisms.In this paper,the slope and wavy wall shock generators in passive hybrid enhancement methods are summarized respectively,and the research progress of slope and wavy wall combined mixed enhancement technology is summarized.Finally,the future development of various mixed enhancement methods is prospected.

关 键 词：超燃冲压发动机 混合增强 激波 斜坡喷注器 波纹壁 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程] V211[航空宇航科学与技术—航空宇航推进理论与工程]