Numerical Simulation of the Fire Smoke Movements in a Separate Room

Used the commercial computational fluid mechanics software PHOENICS,numerical simulations of the smoke movements in four different ventilation working conditions were achieved,which include natural ventilation,air-conditioning supply,natural smoke extraction and mechanical smoke extraction.The smoke and the heat are expelled from the fire room through natural smoke extraction system or mechanical smoke extraction system during a fire,which reduces the concentration of the smoke and the temperature.The smoke extraction effect of the former is worse than the latter.The results of the study,which approves the feasibility of field simulation based on the CFD technology,can be used as reference in fire control and evacuation during a fire.