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Smoke Flow in Buildings: Entrainment around the Corner (Hydraulic Model)

Thomas, Philip H (1992) In LUTVDG/TVBB--3067--SE 3067.
Abstract
In an engineering treatment of the rotation of a layer or hot gas emerging from under a balcony Morgan and Marshall [l] introduced the concept of a horizontal Equivalent Gaussian Source for the resulting vertical plume. They found it necessary to suppose that in the rotation the entrainment was more than 5 times the amount to be expected using conventional entrainment coefficients for vertical plumes. In this report two versions of an alternative model are given and it is suggested that the apparently high entrainment is due to the way equivalence is defined, i.e. it is in part real in part fictitious and in part an effect of temperature not in the Morgan and Marshall model.
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author
publishing date
type
Book/Report
publication status
published
subject
in
LUTVDG/TVBB--3067--SE
volume
3067
pages
20 pages
publisher
Department of Fire Safety Engineering and Systems Safety, Lund University
ISSN
1102-8246
language
English
LU publication?
no
id
9fa2817d-10b4-4c18-98ea-ff43856ccd5f (old id 1267701)
date added to LUP
2008-11-17 11:13:46
date last changed
2016-06-29 08:59:46
@techreport{9fa2817d-10b4-4c18-98ea-ff43856ccd5f,
  abstract     = {In an engineering treatment of the rotation of a layer or hot gas emerging from under a balcony Morgan and Marshall [l] introduced the concept of a horizontal Equivalent Gaussian Source for the resulting vertical plume. They found it necessary to suppose that in the rotation the entrainment was more than 5 times the amount to be expected using conventional entrainment coefficients for vertical plumes. In this report two versions of an alternative model are given and it is suggested that the apparently high entrainment is due to the way equivalence is defined, i.e. it is in part real in part fictitious and in part an effect of temperature not in the Morgan and Marshall model.},
  author       = {Thomas, Philip H},
  institution  = {Department of Fire Safety Engineering and Systems Safety, Lund University},
  issn         = {1102-8246},
  language     = {eng},
  pages        = {20},
  series       = {LUTVDG/TVBB--3067--SE},
  title        = {Smoke Flow in Buildings: Entrainment around the Corner (Hydraulic Model)},
  volume       = {3067},
  year         = {1992},
}