General features of the airflow patterns and heat and species distributions in the industrial workshop are numerically identified by the use of CFD, where the hybrid ventilation system combined with buoyancy driven natural ventilation and mechanical supplying fan ventilation was installed. Ventilation volume rate, vertical temperature distribution and the efficiency of heat removal in the industrial workshop are numerically calculated through changing the thermal source intensity and mechanical supply pressures. The results indicate that heat removal efficiency dropped as the heat source inten...
