Numerical Simulation Analysis of the Airflow and Methane Distribution in Working Face
XU Kun-lun
Abstract：In order to accurately grasp the methane distribution and accumulation regularity in the heading face,a commercial CFD software Fluent is used to simulate the airflow in working face with forcing auxiliary ventilation. The Mathematical model for simulation of airflow in working face with auxiliary ventilation is estab-lished based on study of the airflow pattern and characteristics of the auxiliary ventilation. The simulation re-sults fit the model experiment data well. Research shows that:the airflow pattern simulation in the working face is obtained well by used the RNG k-εtwo equations turbulence model,based on the simulation results, the distribution pattern of methane is studied in working face,the methane accumulate in the lower part of two sides of roadway,simulation results of the methane concentration in the backflow fit the theoretical calculation data well.
Keywords：numerical simulationfluentairflowmethane concentrationmethane source termmethane ac-cumulation
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 28-33 )