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

Philip H Thomas

Research output: Book/ReportReportResearch

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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.
Original languageEnglish
PublisherDepartment of Fire Safety Engineering and Systems Safety, Lund University
Number of pages20
Volume3067
Publication statusPublished - 1992
Externally publishedYes

Publication series

NameLUTVDG/TVBB--3067--SE
Volume3067
ISSN (Print)1102-8246

Subject classification (UKÄ)

  • Other Civil Engineering
  • Building Technologies

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