[1]张俭让,张 荃,董丁稳,等.掘进巷道油型气扩散规律数值模拟[J].西安科技大学学报,2015,(03):307-312.
 ZHANG Jian-rang,ZHANG Quan,DONG Ding-wen,et al.Numerical simulation of oil-type gas diffusion regularities in roadway excavation[J].Journal of Xi'an University of Science and Technology,2015,(03):307-312.
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掘进巷道油型气扩散规律数值模拟(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年03期
页码:
307-312
栏目:
出版日期:
2015-06-30

文章信息/Info

Title:
Numerical simulation of oil-type gas diffusion regularities in roadway excavation
文章编号:
10.13800/j.cnki.xakjdxxb.2015.0306
作者:
张俭让12张 荃12董丁稳12陈 伟12
1.西安科技大学 能源学院,陕西 西安 710054; 2.教育部 西部矿井开采及灾害防治重点实验室,陕西 西安 710054
Author(s):
ZHANG Jian-rang12ZHANG Quan12DONG Ding-wen12CHEN Wei12
1.College of Energy Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Key Laboratory of Western Mine Exploration and Hazard Prevention,Ministry of Education,Xi'an 710054,China
关键词:
掘进巷道 数值模拟 风流流场 CH4浓度
Keywords:
heading face numerical simulation airflow CH4 concentration
分类号:
TD 712
文献标志码:
A
摘要:
根据掘进巷道风流流场特点,应用计算流体力学(CFD)软件ANSYS的 Realizable k-ε 双方程模型模拟了掘进工作面的油型气与风流质量混合过程。探讨了掘进工作面风流流场和油型气的主要成分CH4浓度分布规律,对比了油型气在掘进巷道底板不同位置涌出的扩散规律。研究表明,涌出点在涡流内部区域时,油型气与巷道风流混合得更充分; 涌出点距掘进头一定距离之后,油型气涌出后随风流方向运动,且巷道顶部浓度较高; 涌出源为垂直于掘进方向的裂隙时,油型气扩散后CH4浓度在高度上的浓度差较小,裂隙平行于掘进方向时,高度上的浓度差较大。
Abstract:
According to the characteristics of flow field in roadway excavation,a simulation was carried out on mixing procession of airflow and CH4 in heading face with CFD fluent,using Realizable k-ε double equation model.The heading face airflow field and CH4 concentration distribution was discussed.And emission law of oil-type gas at different floor position was compared.The study found that when the point in eddy current region,oil-type gas and airflow mixed more fully.After a certain distance from point to face,oil-type gas moves with the airflow and the concentration decreases from top to bottom.Emission point for the cracks perpendicular to the driving direction,CH4 concentration in the height of the gas diffusion after oil type difference is tiny discrepancy; cracks parallel to the driving direction,the concentration of the height is large differences.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-04-10 责任编辑:高 佳 通讯作者:张俭让(1963-),男,陕西岐山人,教授,E-mail:zhaangjr@sohu.com
更新日期/Last Update: 1900-01-01