| 基于Fluent的定容燃烧弹内预混层流燃烧模拟 |
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| 引用本文： | 刘磊,孙俊,李格升,吕晓辉.基于Fluent的定容燃烧弹内预混层流燃烧模拟[J].船海工程,2012,41(5):107-111. |
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| 作者姓名： | 刘磊 孙俊 李格升 吕晓辉 |
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| 作者单位： | 1. 武汉交通职业学院船舶与轮机工程系,武汉,430065
2. 武汉理工大学能源与动力工程学院,武汉,430063 |
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| 基金项目： | 湖北省自然科学基金重点资助项目 |
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| 摘 要： | 利用GAMBIT软件对定容燃烧弹腔体进行网格划分,对Quad-Map、Quad-Pave、Tri-Pave3种不同网格划分机理进行了比较研究。结果表明：基于Quad-Map机理模拟定容燃烧弹预混层流燃烧时,无法实现预混气体弹体中心点燃;基于Quad-Pave机理模拟时,由于网格本身的非对称性,而导致模拟结果的非对称,火核呈不规则几何形状分布;基于Tri-Pave机理模拟时,在实现预混气体弹体中心点燃的同时,模拟结果对称,火核呈圆球形状分布,与实验结果基本吻合。建立了氢气容弹内预混燃烧Fluent模型,其模拟结果与实验结果基本吻合。
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| 关 键 词： | Fluent 定容燃烧弹 层流火焰 |
Simulation of Premixed Laminar Combustion in the Constant Volume Combustion Bomb with Fluent |
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| Authors: | LIU Lei SUN Jun LI Ge-sheng LV Xiao-hui |
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| Affiliation: | 1 Wuhan Technical College of Communications Wuhan 430065,China; 2 School of Energy and Power Engineering,Wuhan University of Technology,Wuhan 430063,China) |
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| Abstract: | Using GAMBIT to mesh the cavity of constant volume combustion bomb.The mesh mechanism of Quad-Map,Quad-Pave and Tri-Pave methods was compared.The results showed that premixed gas can not be ignited with Quad-Map mechanism.The asymmetry of the grid would lead the non-symmetric simulation results,and irregular geometry of the nuclear fire distribution with Quad-Pave mechanism.Premixed gas can be ignited with Tri-Pave mechanism,the fire nuclear shape cylindrical distribution.The Fluent model of H2 premixed combustion in constant volume combustion bomb was established.The simulation results were consistent with the experimental results. |
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| Keywords: | Fluent constant volume combustion bomb laminar flame |
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