Field-network model for mine fire smoke movement®

To overcome the shortcomings of current mine fire simulation method, a new mathematical model, field-network model, was proposed for smoke movement simulation during mine fires. The model consists of field model, network model and proper boundary conditions. Field model is used in the fire source roadway, considering the large scale turbulent motion that controls the rate of diffusion of mass, momentum and heat. Network model is adopted in the other part of mine ventilation network to account for the complexity and integrity of the whole network. The new model absorbed the merits of economy and accuracy from both network model and field model. The solving method for the field-network model was also introduced.