| 加力燃烧室流场形态与振荡燃烧数值模拟 |
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| 引用本文： | 张澄宇,孙晓峰.加力燃烧室流场形态与振荡燃烧数值模拟[J].航空动力学报,2010,25(2):270-277. |
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| 作者姓名： | 张澄宇 孙晓峰 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100191 |
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| 摘 要： | 利用数值方法对发动机加力燃烧室内的流场形态和振荡燃烧进行模拟,获得流场平均参数及涡系结构,观察到燃烧室内火焰稳定器唇口附近剪切涡对选择模型的敏感性,发现火焰稳定器后的涡脱落和回流区的周期性变化是引起加力"蜂鸣"现象和振荡燃烧的重要因素,证明了Rayleigh准则在研究此类问题时的适用性.
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| 关 键 词： | 加力燃烧室 数值模拟 剪切涡 涡脱落 振荡燃烧 |
| 收稿时间： | 2009/11/5 0:00:00 |
| 修稿时间： | 2009/12/28 0:00:00 |
Numerical simulation on vortex shedding and combustion oscillation in aero-engine afterburner |
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| ZHANG Cheng-yu and SUN Xiao-feng.Numerical simulation on vortex shedding and combustion oscillation in aero-engine afterburner[J].Journal of Aerospace Power,2010,25(2):270-277. |
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| Authors: | ZHANG Cheng-yu and SUN Xiao-feng |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | The flow field and combustion oscillation in the aero-engine afterburner were numerically simulated.The mean parameter and vortex structure were obtained.The combustion model is very important for the shear vortex accreting the flame holder lip.The periodic process of vortex shedding and periodic change of recirculation zone after the flame holders were observed as an important factor for the afterburner buzz and combustion oscillation.The applicability of Rayleigh rule was validated by the harmonious wave in the afterburner. |
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| Keywords: | afterburner numerical simulation shear vortex vortex shedding combustion oscillation |
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