| 煤粒瓦斯扩散的数学物理模型 |
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| 引用本文： | 聂百胜 郭勇义. 煤粒瓦斯扩散的数学物理模型[J]. 辽宁工程技术大学学报(自然科学版), 1999, 18(6): 582-585 |
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| 作者姓名： | 聂百胜 郭勇义 |
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| 作者单位： | [1]中国矿业大学 [2]太原理工大学 |
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| 摘 要： | 分析了煤粒瓦斯解吸扩散的过程，建立了第三类边界条件的煤粒瓦斯扩散的数学物理模型并给出了模型的解析解。结论表明，第三类边界条件下的瓦斯扩散模型包含以往研究的第一类边界条件下的扩散模型，传质毕欧准数能表征煤粒瓦扩散场的特点；介绍了测试煤粒瓦斯扩散 数和表面传质系数的方法，给出了测试实例。
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| 关 键 词： | 煤粒 瓦斯扩散 瓦斯含量 扩散系数 数学物理模型 |
Mathematical and Physical Model of Gas Diffosion through Coal Particles |
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| Nie Baisheng, Wang Enyuan, Gu Yngyi Wu Shiyue, Wei JIanfeng. Mathematical and Physical Model of Gas Diffosion through Coal Particles[J]. Journal of Liaoning Technical University (Natural Science Edition), 1999, 18(6): 582-585 |
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| Authors: | Nie Baisheng Wang Enyuan Gu Yngyi Wu Shiyue Wei JIanfeng |
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| Abstract: | The paper analyzes the process of gas diffesion through coal particles,finds the mathematical and physical model of gas diffesion through coal particles under the third kind b0undary condition,and obtains its analytical solution.The conclusion shows that gas diffesion model under the third kind boundny conditionincludes the m0del under the first Kind boundary condition;mass transfer Biot criterion can repressent the featoreof gas diffesion field of coal particles.Moreover,the measurement method of gas diffusion coefficient and surface mass transfer coefficiellt is introduced and an example of measurement is given. |
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| Keywords: | gas diffusion through coal particles the third Kind boundny condition mass transfer biot criterion diffusion coefficient surface mass transfer coefficient |
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