Radiation And Surface Roughness Effects In The Numerical Modelling Of Enclosure Fires

Abstract

This paper concerns improvements to the three dimensional, time dependent, field model JASMINE to account for the effects of radiant heat transfer and of momentum and convective heat transfer to rough surfaces. Experimental fire tests conducted in a disused railway tunnel are compared with steady state predictions to examine the effect of these improvements. Attention is drawn to the lack o f information on convective heat and momentum transfer to the surfaces of practical building materials.