| 基于ADI方法的煤与瓦斯突出浓度分布规律研究 |
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| 引用本文： | 聂百胜,戴林超,李海龙. 基于ADI方法的煤与瓦斯突出浓度分布规律研究[J]. 矿业工程研究, 2011, 26(2) |
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| 作者姓名： | 聂百胜 戴林超 李海龙 |
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| 作者单位： | 中国矿业大学(北京)资源与安全工程学院,北京,100083 |
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| 基金项目： | 中央高校基本科研业务费专项基金资助项目(2009kz03) |
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| 摘 要： | 为了研究煤与瓦斯突出后瓦斯浓度的分布规律,基于流体力学理论,叙述了巷道内突出后瓦斯运移的数学模型,采用交替方向隐式格式方法(ADI方法)对瓦斯运移的对流扩散数学方程进行离散化处理,并在给定的物理模型以及初始条件下进行数值模拟求解,得到巷道内突出后瓦斯在不同时间、不同地点的浓度分布规律.结果表明:交替方向隐式格式方法具有运算速度快、无条件稳定等优点,能够较好地模拟巷道内瓦斯突出后的浓度分布规律,为煤与瓦斯突出防治提供了一定的理论参考.
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| 关 键 词： | 煤与瓦斯突出 对流扩散方程 交替方向隐式格式(ADI方法) |
Research on the concentration distribution of gas after coal-gas outburst based on the ADI methods |
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| NIE Baisheng,DAI Linchao,LI Hailong. Research on the concentration distribution of gas after coal-gas outburst based on the ADI methods[J]. Mineral Engineeering Reseach, 2011, 26(2) |
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| Authors: | NIE Baisheng DAI Linchao LI Hailong |
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| Affiliation: | NIE Baisheng,DAI Linchao,LI Hailong(School of Resource and Safety Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China) |
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| Abstract: | A mathematical model of gas migration has been elaborated to study the concentration distribution of gas after coal-gas outburst.The model is based on the theory of fluid mechanics.And the convectional diffusion equation is discredited adopting the method of alternating direction implicit(ADI).Then the numerical simulation is conducted under given physical model and the initial conditions.The concentration distributions of gas at different time and sites are obtained.Results show that the ADI format has adv... |
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| Keywords: | coal-gas outburst convectional diffusion equation alternating direction implicit format(ADI method) |
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