MATHEMATICAL MODEL AND EXPERIMENTS OF SPREAD OF SMOKE FRONT IN A CORRIDOR : Horizontal spread of smoke front Part 1

Abstract

The front spread of the density flow is measured by the model experiments using dyed salt water and fresh water. A mathematical model for the prediction of front velocity of the density flow is formulated. The model is applied to estimate the velocity of horizontal spread of the smoke front in a corridor, and the effect of heat loss from smoke layer is considered by a simple formulation using a constant total heat transfer coefficent. The prediction of horizontal spread of the smoke front using this model is compared with the field experiments: The model is valid to predict the horizontal spread of low temperature smoke in a corridor.