Author(s)

M.N. Christolis, C.A. Christidou, A.G. Boudouvis & N.C. Markatos

Abstract

A k-e turbulence model that accounts for buoyancy effects is used to predict flow and concentration fields around a warehouse on fire. A parametric study of the effect of the buoyancy and momentum flux number was made to examine the influence of wind speed on plume lift-off and consequently, on ground clearing. It was found that lift-off occurs at F/U L=0.1 in agreement with the values reported in the literature. The parametric analysis shows the significance of the effect of the inlet boundary conditions on flow and concentration fields. 1. Introduction Computations of flow around buildings on fire is a very difficult task, mainly due to the presence of buoyancy and recirculation. The question of whether the plume will touch the

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