燃烧室熵致噪声的研究进展  

Research progress on entropy noise in combustor chamber

作　　者：张憨拙 杨东 ZHANG Hanzhuo;YANG Dong(Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]南方科技大学力学与航空航天工程系,广东深圳518055

出　　处：《火箭推进》2025年第1期50-77,共28页Journal of Rocket Propulsion

基　　金：国家自然科学基金(52311530077,52106159)

摘　　要：燃烧热声振荡严重影响火箭发动机和航空发动机的安全性,是限制高性能、大推力、低排放发动机燃烧技术发展的关键因素之一。发动机中的熵致噪声可能影响系统的热声振荡。随着以运动火焰模型和中高频温度动态测量技术为代表的研究工具的出现,熵致噪声的研究在确定熵波的源、熵波在对流过程中的耗散程度等问题上也取得了新的进展。概述了熵致噪声所涉及主要物理过程分别对应的机理;依据研究方法对研究成果进行了分类,系统地梳理了每一物理过程所对应的研究进展;总结了熵致噪声产生的机理,指出了当前研究的不足,并提出了未来的研究重点。Thermoacoustic instability of combustion significantly affects the safety of rocket engines and aero-engines and is one of the key factors limiting the development of combustion technolgoy for high-performance,high-thrust,and low-emission engines.Entropy noise in engines may affect the thermoacoustic instability of the system.With the emergence of research tools represented by the moving flame model and dynamic temperature measurement techniques at medium and high-frequencies,new progress has been made in the study of entropy noise,particularly in determining the sources of entropy waves and the degree of entropy dissipation during convection processes.An overview of the mechanisms related to entropy noise is provided first.The research results are classified based on research methodologies,and the progress in each physical process is systematically reviewed.The mechanisms of entropy noise generation are summarized,the limitations of current research are identified,and future research priorities are proposed.

关 键 词：发动机燃烧室 热声振荡 熵致噪声 熵波 

分 类 号：V434.13[航空宇航科学与技术—航空宇航推进理论与工程]