Numerical and experimental analysis of different ventilation systems in deep mines

The authors carried out a study on ventilation systems working in the cul-de-sac of a coal mine. In a real mine gallery, measurements were made with a hot-wire anemometry and then used for the validation of a numerical model. Blowing, exhaust and mixed ventilation systems have been numerically examined, detailed information have been obtained about the flow field, the methane concentration and the mean age of air.