Theoretical analysis on flame dimension in turbulent ceiling fires

W. G. Weng*, Y. Hasemi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


In this paper, theoretical analysis based on boundary layer theory on flame dimension in turbulent ceiling fires is carried out. The turbulent ceiling fire is developed from a downward round injection source beneath an unconfined inert ceiling. A correlation between the dimensionless flame diameter and the dimensionless heat release rate is obtained, C1(S/d) ∼ C2Q*3/4. This relation for turbulent ceiling fires is correlated to experimentally measured flame diameters for ceiling fires. Based on the limited data available, the agreement with experiments is very good. Additional experiments are needed to further verify the validity of this relation.

Original languageEnglish
Pages (from-to)154-158
Number of pages5
JournalInternational Journal of Heat and Mass Transfer
Issue number1-2
Publication statusPublished - 2006 Jan


  • Boundary layer
  • Ceiling fire
  • Flame dimension

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


Dive into the research topics of 'Theoretical analysis on flame dimension in turbulent ceiling fires'. Together they form a unique fingerprint.

Cite this