Numerical simulation study on smoke stratification under the effect of mechanical smoke exhaustion

In this paper, characteristic parameters of smoke stratification have been studied under the effect of mechanical smoke exhaustion in narrow and long corridors. Results of numerical simulation show that, smoke stratification intensity is related to flow velocity, fire power, height of the door vent, and position of smoke port. This research can contribute to personnel evacuation and fire-fighting rescue, and provide basis for smoke control specifications.