Title of article
Experimental Study of a Thermal Plume Evolving in a Confined Environment: Application to Fires Problems
Author/Authors
Naffouti، T. نويسنده , , Hammami، M. نويسنده , , Rebay، M. نويسنده , , Maad، R.B. نويسنده ,
Issue Information
ماهنامه با شماره پیاپی 3 سال 2009
Pages
10
From page
29
To page
38
Abstract
We propose to study the natural convection flow resulting from the interaction of a fire with walls that surround it. Indeed,
when a fire occurs in a tunnel or in a tower block, it creates a thermal plume causing a heating of the neighbouring walls.
This heating by thermal radiation of the walls creates a phenomenon of thermosiphon which interacts with the plume. To
study this flow we simulated the problem at the laboratory where we placed a rectangular source heated by Joule effect at
the entrance of an open-ended vertical canal. The flow visualization by laser plan and the exploration of the thermal and
dynamic fields inside the canal enabled us to describe the flow structure. In order to better characterize this flow, we carried
out a fine analysis by studying the spectra of temperature fluctuations. This spectral analysis allowed us to clarify the
energetic evolution of the vortexes during their ascension and verify some known spectral laws.
Journal title
Journal of Applied Fluid Mechanics (JAFM)
Serial Year
2009
Journal title
Journal of Applied Fluid Mechanics (JAFM)
Record number
2398394
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