Numerical simulation for determining three zones in the goaf at a fully-mechanized coal face

Abstract

According to the theory of ventilation network, a model for a filtration flow field in goaf was built and simulation software for determining the three zones in goaf has been developed. This software uses no-gap-connection between Visual Basic (VB) and Excel to exchange data, uses Component Object Model (COM) component of MATLAB to plot charts of the three zones and to export the corresponding coordinates of the isolines. An example shows that this software is convenient and simple. By using it, the three zones can be easily determined. The software is convenient in studies and analyses of the three zones in goaf.