Abstract
Plug row model, which is a dynamical model for coal and gas outbursts, is developed to locally opened system. At the first report, the author lead the model with the assumption of the locally closed system. But for the case of the mass of gas in a local system changes, the system is no longer the closed system. At that condition, the model has to be developed to the locally opened system. There are two typical cases that the system has to be treated as the locally opened system. One is gas flow between local systems, the other is gas desorption from a coal. These effects are added to our model. With new parameters for gas flow and gas desorption, numerical simulation is examined. And in-door experimental results, which is performed by another researchers, is compared with our numerical calculation results.
