Flame Structure of Methane and Kerosene Combustion with a Compact Concave Flame-Holder using the LES-pdf Method

作     者：WANG Fang WANG Yunfan WEI Guanyi LIU Denghuan JIN Jie JONES P.William WANG Fang;WANG Yunfan;WEI Guanyi;LIU Denghuan;JIN Jie;JONES P.William

作者机构：School of Energy and Power EngineeringBeihang UniversityBeijingBeijing 100191China Department of Mechanical EngineeringImperial College LondonLondon SW72AZUK 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2024年第33卷第1期

页      面：222-234页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：National Science and Technology Major Project (2017-Ⅰ-0004-0005) National Natural Science Foundation of China (91741125) 

主　　题：concave structure flame-holder LES-pdf spray combustion flame structure AECSC 

摘      要：Compact flame-holders for afterburners are an increasing requirement for modern aero ***,flame-holder design is non-trivial since high inlet temperatures,velocities,and elaborate structures induce complex turbulence,combustion,and spray coupling in modern *** this work,the LES-pdf and stochastic fields-Lagrangian particle spray methods are used to investigate methane and aviation kerosene combustion structures formed by new-type concave *** flow pattern,combustion mode,and flame structure of gaseous and liquid fuel around a concave flame-holder are analyzed,discussed,and compared with experimental *** reveal that the flame stability of a concave flame-holder is better than that of the non-concave ***,when using liquid fuel,the concave flame-holder forms a stable and compact *** results suggest concave flame-holders are a promising design for compact afterburners.