Effects of flow guide vanes structure parameters on characteristics of advanced vortex combustor

被引：0
作者：
School of Aircraft Engineering, Nanchang Hangkong University, Nanchang [1 ]
330063, China
不详 [2 ]
200090, China
机构：
[1] School of Aircraft Engineering, Nanchang Hangkong University, Nanchang
[2] College of Power and Mechanical Engineering, Shanghai University of Electric Power, Shanghai
来源：
Tuijin Jishu | / 3卷 / 405-412期
关键词：
Advanced vortex combustor; Dual-vortex; Flow guide vanes; Numerical simulation;
D O I：
10.13675/j.cnki.tjjs.2015.03.013
中图分类号：
学科分类号：
摘要：
In order to investigate the combustion and flow characteristics of Advanced Vortex Combustor (AVC) with flow guide vanes, the effects of different structural parameters on flow fields, temperature distribution, the total pressure loss, combustion efficiency and pollutant emission were numerically studied. The results show that AVC with flow guide vanes has better performance than formal AVC. It can form a desirable dual-vortex structure even without any cavity air injection and it can enhance the stability of flame and the mixing of gas, combustion efficiency and exit temperature distribution. Meanwhile it can reduce pollutant emission. Structural parameters of flow guide vanes have certain significant effects on the combustor characteristics. Stable combustion with lower total pressure loss and lower pollution can be achieved when a/B=0.2, b/H=0.4, c/L=0.1~0.2 (where a is defined as the length of vane inside the cavity, b is defined as the distance from vane to the upper surface of the front-body, c is the distance from vane to the rear surface of the front-body, B is the front-body height, H is height of the inlet, L is the cavity length)under lean conditions, and the combustor exit temperature distribution becomes more uniform. ©, 2015, Editorial Department of Journal of Propulsion Technology. All right reserved.
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页码：405 / 412
页数：7
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