Citation

Poreh M, Trebukov S. Fire Safety J. 2000; 35(3): 257-273.

Copyright

(Copyright © 2000, Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

A general analysis of wind effects on the motion of buoyant smoke motion and control in buildings is presented. It identifies the role of the significant parameters, defines a dimensionless threshold wind speed, at which wind effects become significant, and shows that probability of significant wind effects is not small. Detailed analysis is then presented for four cases: A naturally vented atrium, two adjacent atria where two communicating elevated layers may be formed, a naturally vented stairwell and a pressurized stairwell. The latter analysis shows that the resistance coefficient of the stairwell is a significant factor, that effects the performance of the pressurization system, and a low-resistance stairwell shape is identified.