Study on Distribution Law of Multicomponent Gases in Coal Mine Gob in a Numerical Simulation Way

DOI

10.2991/icimm-15.2015.124How to use a DOI?

Keywords

gob; porosity; three-dimensional distribution; CFD.

Abstract

Grasping the field distribution rule of oxygen, gas and other gases in gob of coalmine is the basis to study the oxidation spontaneous combustion, gas combustion and explosion of gob, having important significance in coal fire prevention and gas control of gob. Due to the destructiveness and concealment of gob, conducting systematic actual measurement for multi-species gas of gob tends to be of greater difficulty, and even harder to achieve. Therefore, the numerical technique has increasingly become the main mean to study the issue. Many scholars at home and abroad had carried out a number of fruitful research work to solve this problem by using the numerical simulation technique: combined with the laboratory test result of rock strength and the relationship of stress - permeability coefficient, P established CFD three-dimensional simulation, conducting the analytical investigation on gas migration rule and gas distribution rule under extraction conditions for gob of longwall face[1]; established a CFD three-dimensional model, R and other scholars particularly studied the distribution rule of gas in gob under different ventilation and extraction conditions[2], [3]; by using the developed CFD three-dimensional model, Hu, Li and other scholars simulated the flowing ruleof gas in gob [4] and the rhythm rule of gas under the drainage of surface drilling condition[5]; developed the CFD model of oxygen distribution in gob, Shi and other scholars studied the distribution rule of oxidation zone in gob and its relation with the amount of air distribution[6,7]. Numerical simulation technique based on CFD has been widely applied in researching the gas control, coal fire prevention and other issues of gob.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Shuguang Wang
AU  - Jincai Zhu
AU  - Qing Chen
AU  - Bihong Song
PY  - 2015/07
DA  - 2015/07
TI  - Study on Distribution Law of Multicomponent Gases in Coal Mine Gob in a Numerical Simulation Way
BT  - Proceedings of the 5th International Conference on Information Engineering for Mechanics and Materials
PB  - Atlantis Press
SP  - 657
EP  - 664
SN  - 2352-5401
UR  - https://doi.org/10.2991/icimm-15.2015.124
DO  - 10.2991/icimm-15.2015.124
ID  - Wang2015/07
ER  -