| 燃料中心进入的旋流燃烧数值模拟 |
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| 引用本文： | 胡.燃料中心进入的旋流燃烧数值模拟[J].动力工程,2007,27(1):99-102,144. |
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| 作者姓名： | 胡 |
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| 作者单位： | 1. 上海交通大学,机械与动力工程学院,上海,200240
2. 清华大学,航天航空学院,北京,100084 |
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| 基金项目： | 上海交大校内青年教师科研启动基金 |
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| 摘 要： | 采用统一二阶矩(USM)旋流燃烧模型对旋流数为0.5的美国Sandia国家实验室甲烷-空气旋流火焰进行了数值模拟.预报的轴向、切向时均速度、脉动速度均方根值、温度以及CO2和H2O浓度分布都和实验值吻合,验证了统一二阶矩模型的可靠性.从测量值和预报值可以看出,火焰几乎就位于回流区内,燃烧过程进行得很快,回流区的存在强化了燃烧.
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| 关 键 词： | 动力机械工程 旋流燃烧 二阶矩模型 数值模拟 |
| 文章编号： | 1000-6761（2007）01-099-04 |
| 修稿时间： | 2006-03-102006-05-31 |
Numerical Simulation of Swirling Diffusion Flame with Central Fuel Inlet |
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| HU Li-yuan,LUO Yong-hao,ZHOU Li-xing.Numerical Simulation of Swirling Diffusion Flame with Central Fuel Inlet[J].Power Engineering,2007,27(1):99-102,144. |
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| Authors: | HU Li-yuan LUO Yong-hao ZHOU Li-xing |
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| Abstract: | The methane-air swirling flame,(swirling number 0.5) of the Sandia National Lab,USA is being numerically simulated by the unified second order moment(USM) combustion model.The predicted axial and tangential time averaged velocities,as well as the root mean square averaged pulsation velocities,the distribution of temperature,CO_2 and H_2O concentration,all agree quite well with experimental data,herewith verifying the unified second order moment model's reliability.Both experimental and prediction results indicate that the flame is basically located inside the recirculation zone.The combustion process proceeds very quick,with combustion intensified by the existing recirculation.Figs 8 and refs 8. |
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| Keywords: | power and mechanical engineering swirling combustion second order moment model numerical simulation |
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