Numerical studies on the transient behaviour of a fire plume and ceiling jet

Authors:
W.K Chow
Affiliations:
Department of Building Services Engineering, Hong Kong Polytechnic Humg Hom, Kowloon, Hong Kong, People's Republic of ChinaR.O.C.
Venue:
Mathematical and Computer Modelling: An International Journal
Year:
1993

Citing 2
Cited 0

The mathematical modelling of turbulent flows

Applied Mathematical Modelling
The numerical computation of turbulent flows

Computer Methods in Applied Mechanics and Engineering - Special edition on the 20th Anniversary

Quantified Score

Hi-index	0.98

Visualization

Abstract

Transient behaviour of a thermally induced fire plume and ceiling jet is predicted using the field modelling technique. In the field model, the k-@e model is used to simulate the turbulent air flow. The traditional wall-function approach is applied to describe the solid-wall boundary effect. The building concerned is composed of a floor and a ceiling, but is without walls. The height is varied from 3 m to 9 m. Transient behaviour of air temperature, velocities, smoke concentration, etc., are predicted. The air entrainment rates to the fire plume and the entrainment constants are also calculated and compared with empirical expressions.