| 瓦斯分布与风量及瓦斯涌出量关系的数值模拟 |
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| 引用本文： | 高建良,吴妍,徐昆伦.瓦斯分布与风量及瓦斯涌出量关系的数值模拟[J].焦作工学院学报,2007,26(6):609-612. |
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| 作者姓名： | 高建良 吴妍 徐昆伦 |
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| 作者单位： | 河南理工大学安全科学与工程学院,河南焦作454003 |
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| 基金项目： | 河南省高校杰出科研人才创新工程项目（2004KYCX005）;教育部留学回国人员科研启动基金资助项目;河南理工大学博士基金资助项目（B0204） |
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| 摘 要： | 煤矿瓦斯事故频发,危害严重,用计算机模拟矿井掘进巷道中的瓦斯分布与积聚是优化通风方案的重要手段.本文根据流体动力学理论,对局部通风掘进巷道中的瓦斯分布与积聚进行数值模拟,分析了在风量和瓦斯涌出量变化的情况下瓦斯体积分数的分布规律.结果表明,当风量和瓦斯涌出量成比例变化时,低体积分数区域的瓦斯大致按比例变化,高体积分数区域的瓦斯体积分数并不是成比例变化.
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| 关 键 词： | 瓦斯事故 数值模拟 瓦斯体积分数 瓦斯积聚 |
| 文章编号： | 1673-9798（2007）06-0609-04 |
| 收稿时间： | 2007-04-01 |
Numerical simulation of the relationship of gas distribution with air velocity and gas emission rate |
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| GAO Jian - liang, WU Yan, XU Kun - lun.Numerical simulation of the relationship of gas distribution with air velocity and gas emission rate[J].Journal of Jiaozuo Institute of Technology(Natural Science),2007,26(6):609-612. |
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| Authors: | GAO Jian - liang WU Yan XU Kun - lun |
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| Abstract: | Coal mine gas accident happen frequently and harm is serious, the computer simulation is the main way of the ventilates optimization. Based on the theory of Fluid Dynamics, the distribution and accumulation of gas at a working face with auxiliary ventilation are simulated, and the pattern of gas distribution with varing airflow velocity and gas emission rate is anallzed. The result indicated that gas volume fraction generally varies in proportion with air velocity and gas emission rate at low volume fraction area, and at high volume fraction area it does not vary in proportion with air velocity and gas emission rate. |
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| Keywords: | gas accident numerical simulation gas volume fraction gas accumulation |
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