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Numerical experiments in fire science: a study of ceiling jets

Johansson, Nils LU ; Wahlqvist, Jonathan LU and Van Hees, Patrick LU (2015) In Fire and Materials 39(5). p.533-544
Abstract
In this paper, a numerical experiment, consisting of 90 simulations in Fire Dynamics Simulator (FDS), is conducted for two different purposes. Firstly, numerical experiments are explored as a research method in fire science, and it is demonstrated that numerical experiments could be used as a complement to traditional fire experiments in fire science research. Secondly, an evaluation of previously derived correlations for ceiling jet excess temperatures and velocities is performed with the help of the results from the numerical experiment. The procedure used in this evaluation constitutes an outline for how a numerical experiment can be conducted in fire science. The evaluation indicates that the existing correlations will give a good... (More)
In this paper, a numerical experiment, consisting of 90 simulations in Fire Dynamics Simulator (FDS), is conducted for two different purposes. Firstly, numerical experiments are explored as a research method in fire science, and it is demonstrated that numerical experiments could be used as a complement to traditional fire experiments in fire science research. Secondly, an evaluation of previously derived correlations for ceiling jet excess temperatures and velocities is performed with the help of the results from the numerical experiment. The procedure used in this evaluation constitutes an outline for how a numerical experiment can be conducted in fire science. The evaluation indicates that the existing correlations will give a good estimate of the average temperature in a ceiling jet calculated by FDS. However, the correlations do not give a good estimate of the maximum excess temperature. A new correlation to estimate the maximum temperature has therefor been developed and is presented in the paper (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
numerical experiments, ceiling jet, fire dynamics, FDS, simulations
in
Fire and Materials
volume
39
issue
5
pages
533 - 544
publisher
John Wiley & Sons
external identifiers
  • wos:000359376900004
  • scopus:84938745119
ISSN
1099-1018
DOI
10.1002/fam.2253
language
English
LU publication?
yes
id
4ae70487-4fc7-4302-8d31-463d8d386c18 (old id 4459347)
date added to LUP
2014-06-05 15:24:50
date last changed
2017-10-01 04:22:02
@article{4ae70487-4fc7-4302-8d31-463d8d386c18,
  abstract     = {In this paper, a numerical experiment, consisting of 90 simulations in Fire Dynamics Simulator (FDS), is conducted for two different purposes. Firstly, numerical experiments are explored as a research method in fire science, and it is demonstrated that numerical experiments could be used as a complement to traditional fire experiments in fire science research. Secondly, an evaluation of previously derived correlations for ceiling jet excess temperatures and velocities is performed with the help of the results from the numerical experiment. The procedure used in this evaluation constitutes an outline for how a numerical experiment can be conducted in fire science. The evaluation indicates that the existing correlations will give a good estimate of the average temperature in a ceiling jet calculated by FDS. However, the correlations do not give a good estimate of the maximum excess temperature. A new correlation to estimate the maximum temperature has therefor been developed and is presented in the paper},
  author       = {Johansson, Nils and Wahlqvist, Jonathan and Van Hees, Patrick},
  issn         = {1099-1018},
  keyword      = {numerical experiments,ceiling jet,fire dynamics,FDS,simulations},
  language     = {eng},
  number       = {5},
  pages        = {533--544},
  publisher    = {John Wiley & Sons},
  series       = {Fire and Materials},
  title        = {Numerical experiments in fire science: a study of ceiling jets},
  url          = {http://dx.doi.org/10.1002/fam.2253},
  volume       = {39},
  year         = {2015},
}