Mining Institute of Ural Branch of Russian Academy of Sciences (Perm, Russia):

Kazakov B. P., Head of Laboratory of Aerology and Thermal Physics, Doctor of Engineering Sciences, e-mail: aero_kaz@mail.ru
Shalimov A. V., Senior Researcher, Candidate of Engineering Sciences

This article describes the structure of software for numerical modeling of aerological and thermal physics processes, which are carried out during mine disasters. There is given the review of specialized physical and mathematical models, included in the calculation module of the program. There are also given the basic physical mechanisms, which characterize the peculiarities of emergency modes of mines' airing. A task of heat exchange of mine air with joint rock massif was solved, taking into account the final value of heat exchange coefficient, variable flow, daily and seasonal variations of air temperature, adsorption and release of heat with evaporation and condensation of moisture, as well as increasing of rocks' temperature with depth. Designed mathematical model makes it possible to calculate the complex heat exchange processes and connected physical processes, which are carried out in mines. At the same time, these processes form their own microclimate. There were developed the algorithms of calculation of non-standard processes of air movement and distribution of heat and impurities on mine workings in the conditions of changed heat depressions and pressures of draft sources. Mathematical description of changes of thermal-physics characteristics of mine air is given, taking into account its compressibility. The thermodynamic mechanisms, which make an influence on mine air movement, were researched and analyzed. Dynamics of thermal depressions during fires was researched together with an influence on the air movement in mine workings, taking into account the layering of convection flows by the mine workings' section. There are given the results of researches of mines' airing stability by natural drafts after shut-down of main ventilation unit. On the example of mine fire imitation, there is shown, that developed software makes possible the definition of safest ways and required time of men removing from mine, as well as the usage of obtained forecast results during the making of plans of accidents' liquidation.
Scientific-research works were carried out within the tender No. 13-5-026-AERO (13-5-026-АЭРО) of the projects of oriented fundamental researches, financed from the resources of Ural Department of Russian Academy of Sciences.

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