主燃级旋流器对中心分级燃烧室出口性能的影响  

Influence of main combustion stage swirler on outlet characteristics of central staged combustor

作　　者：于建桥 王成军 里海洋[1,2] 马钰 YU Jian-qiao;WANG Cheng-jun;LI Hai-yang;MA Yu(School of Aero-engine,Shenyang Aerospace University,Shenyang 110136,China;Liaoning Key Lab of Advanced Test Technology for Aerospace Propulsion System,Shenyang Aerospace University,Shenyang 110136,China)

机构地区：[1]沈阳航空航天大学航空发动机学院,沈阳110136 [2]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,沈阳110136

出　　处：《沈阳航空航天大学学报》2023年第1期22-30,共9页Journal of Shenyang Aerospace University

基　　金：国家自然科学基金(项目编号:51476106)。

摘　　要：针对中心分级燃烧室头部主燃级旋流器的结构参数变化,探究其对燃烧室出口性能的影响。首先建立三级旋流器的简化模型,再针对主燃级旋流器的旋流孔角度分别设计30°、45°、60°、75°。利用FLUENT软件对燃烧室沿轴向温度分布、出口温度分布、沿轴向NO_(x)分布、出口NO_(x)排放分布等4个方面进行对比分析。结果表明:当主燃级旋流器旋流孔角度为60°时,旋流器对中心分级燃烧室的出口温度分布性能最好,且中心回流区发展较好,旋流器对中心分级燃烧室的出口NO_(x)排放量最小。The structural parameters of the main combustion stage swirler at the head of the central staged combusor were investigated to explore its influence on the outlet characteristics of the combustion chamber.Firstly,a simplified model of the three-stage cyclone was established,and then the swirl hole angles of the main combustion stage cyclone were designed to be 30°,45°,60°,75°,respectively.The FLUENT software was used to compare and analyze the axial temperature distribution,the outlet temperature distribution,the axial NO_(x) distribution,and the outlet NO_(x) emission distribution of the combustion chamber.The results show that when the swirl hole angle of the main combustion stage swirler is 60°,the outlet temperature distribution performance of the swirler to the central staged combustor is the best,and the central return area is well developed,the outlet NO_(x) emission of the swirler to the central staged combustor is the least.

关 键 词：主燃级旋流器 中心分级燃烧室 燃烧室出口温度 NO_(x)排放 中心回流区 

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]