In order to simulate field distribution rules, mathematical models for 3-D air flows and gas transfer in the goaf of the coal mining are established, based on theories of permeability and dynamic dispersion through porous media. A gas dispersion equation in a 3-D field is calculated by use of numerical method on a weighted upstream multi-element balance. Based on data of an example with a U type ventilation mode, surface charts of air pressure distribution and gas concentration are drawn by Graphtool software. Finally, a comparison between actually measured results in the model test and the numerical simulation results is made to proves the numerical implementation feasible. © 2007 The Journal of China University of Mining & Technology.
WU, Z. yan, JIANG, S. guang, HE, X. jian, WANG, L. yun, & LIN, B. quan. (2007). Study of 3-D Numerical Simulation for Gas Transfer in the Goaf of the Coal Mining. Journal of China University of Mining and Technology, 17(2), 152–157. https://doi.org/10.1016/S1006-1266(07)60062-5