Numerical modeling of gas flow in coal pores for methane drainage
The sudden explosion of methane during underground coal mining is a major dilemma. To mitigate its occurrence and reduce the extent of methane diffusion, gas drainage operations are carried out before mining. This paper investigates methane gas flow in a coal block in order to calculate the pressure of gas and its molecule velocity for methane gas drainage operation. A coal piece surrounded by cleats was used for geometrical modeling and numerical simulation. Movements of fluid and gas molecules in a porous medium were successfully simulated. The numerical solution is based on COMSOL Multiphysics software. The validity of the numerical simulation was assessed using an analytical model with satisfactory results.
Taheri, Adel; Sereshki, Farhang; Ardejani, Faramarz Doulati; and Mirzaghorbanali, Ali
"Numerical modeling of gas flow in coal pores for methane drainage,"
Journal of Sustainable Mining: Vol. 15
, Article 2.
Available at: https://doi.org/10.46873/2300-3960.1200
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.