中心分级燃烧室旋流角变化对燃烧特性的影响  

Effect of Central Staged Combuster Swirl Angle on Combustion Performance

作　　者：刘爱虢[1] 李昱泽 朱涛[2] 刘凯[1] LIU Ai-guo;LI Yu-ze;ZHU Tao;LIU Kai(Liaoning Key Laboratory of Advanced Testing Technology for Aeronautical Propulsion System,Shenyang Aerospace University,Shenyang,China,Post code:110136;AVIC Shenyang Engine Design and Reseach Institude,Shenyang,China,Post code:110015)

机构地区：[1]沈阳航空航天大学辽宁省航空推进系统先进测试技术重点实验室,辽宁沈阳110136 [2]中航工业沈阳发动机设计研究所,辽宁沈阳110015

出　　处：《热能动力工程》2019年第12期16-23,共8页Journal of Engineering for Thermal Energy and Power

基　　金：航空科学基金(20170354001);辽宁省自然科学基金(20180550358)~~

摘　　要：实验研究了一种中心分级燃烧室值班级旋流角变化对燃烧性能的影响。采用了单头部单管式燃烧室,值班级一级旋流器旋流数分别为0. 63、0. 72和0. 93,实验研究了采用不同旋流数时燃烧室的点火、慢车贫油熄火、污染物排放和燃烧效率等燃烧特性。实验结果表明:旋流数变化对燃烧室的点火、慢车贫油熄火、污染物排放及燃烧效率等有很大影响;旋流数及一级旋流器和二级旋流器的旋流数差值增加后燃烧室的点火和慢车贫油熄火特性得到改善。一级旋流器旋流数的增加会导致污染物排放的增加及燃烧效率的下降。The effect of swirl angle on combustion performance of a central staged combustor was investigated experimentally.The test has been completed using a single head tube type combustion chamber with different swirl numbers.The swirl numbers of 1^ststage swirler were 0.63,0.72 and 0.93.The ignition,lean blowout,pollutant emissions and combustion efficiency were tested.The experimental results show that the swirl number has great influence on the ignition,lean blowout,pollutant emission and combustion efficiency.The increase of swirl number and difference between 1^stand 2^ndstage swirler can improve the characteristics of ignition and lean blowout.The increase of 1^stswirler swirl number will lead to the increase of pollution emission and the decrease of combustion efficiency.

关 键 词：旋流数 中心分级燃烧室 点火 贫油熄火 燃烧效率 

分 类 号：V231.2[航空宇航科学与技术—航空宇航推进理论与工程]