| 甲烷气体在泡沫陶瓷中预混燃烧的数值模拟和实验研究 |
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| 引用本文： | 李德波,樊建人,宋正昶,易富兴,卢树强,岑可法.甲烷气体在泡沫陶瓷中预混燃烧的数值模拟和实验研究[J].工程热物理学报,2009,30(12). |
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| 作者姓名： | 李德波 樊建人 宋正昶 易富兴 卢树强 岑可法 |
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| 作者单位： | 1. 浙江大学热能工程研究所,能源清洁利用国家重点实验室,浙江,杭州,310027
2. 中国矿业大学,机电工程学院,江苏,徐州,221008 |
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| 摘 要： | 本文对甲烷气体在泡沫陶瓷内燃烧进行了数值模拟和实验研究.根据预混燃烧理论,建立了基于气固两相局部非热平衡模型,采用 26 种组分,77 步详细化学反应机理来模拟反应过程.边界上的辐射换热采用双通量法求解,为减少计算时间,计算区域内部利用扩散近似法求解.为减少边界条件对模拟结果精度的影响,提出了采用能量平衡方法,建立边界上的对流,导热和辐射的整个换热过程,模拟表明这种边界条件具有二阶离散精度.
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| 关 键 词： | 泡沫陶瓷 数值模拟 燃烧 |
NUMERICAL AND EXPERIMENTAL STUDY OF PREMIXED COMBUSTION WITHIN POROUS MEDIA |
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| LI De-Bo,FAN Jian-Ren,SONG Zheng-Chang,YI Fu-Xing,LU Shu-Qiang,CEN Ke-Fa.NUMERICAL AND EXPERIMENTAL STUDY OF PREMIXED COMBUSTION WITHIN POROUS MEDIA[J].Journal of Engineering Thermophysics,2009,30(12). |
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| Authors: | LI De-Bo FAN Jian-Ren SONG Zheng-Chang YI Fu-Xing LU Shu-Qiang CEN Ke-Fa |
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| Institution: | LI De-Bo~1 FAN Jian-Ren~1 SONG Zheng-Chang~2 YI Fu-Xing~1 LU Shu-Qiang~1 CEN Ke-Fa~1 (1.State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou,Hangzhou 310027,China,2.College of Mechanical and Material Engineering,CUMT,Xuzhou 221008,China) |
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| Abstract: | In this paper,a numerical and experimental study of premixed combustion within porous media is presented.Non-local thermal equilibrium between gas and solid is accounted by introducing separate energy equations for gas and solid phase.We use the skeletal mechanism of methane and air~(8]) to simulate combustion in ceramic foams,comprising 26 species and 77 elemental reactions.The two-flux method is used for the solution of radiation transfer in ceramic foams for the boundary node. In our research,the contro... |
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| Keywords: | ceramic foams numerical simulation combustion |
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