摘要：In order to control the airborne spread of pollutants in civil air defences underground projects, the pollution source rooms are isolated. In this paper, CFD simulation technology is used to compare the effect of different positions of air supply and exhaust outlets on the removal of contaminants in the polluted isolation room. Pressure difference control is proposed to prevent the diffusion of polluted air from the isolation room to the clean area, and the realization of pressure difference control under emergency ventilation mode is discussed.
