Flame spread behavior characterization of discrete fuel array under a forced flow

Giovanni Di Cristina, Nicholas S. Skowronski, Albert Simeoni, Ali S. Rangwala, Seong Kyun Im

Research output: Contribution to journalConference articlepeer-review

12 Citations (Scopus)


The forced flow driven flame spread behavior along an array of discrete wooden fuel elements was experimentally investigated, which could be an important step to understanding the flow-flame interactions that govern fire spread. Fuel arrays with five different spacings (0.75, 0.875. 1.00, 1.125, and 1.25 cm) were subject to flow speeds ranging from 2.2 to 4.3 m/s at approximately 0.2 m/s intervals. For spacing-flow speed conditions tested in the current study, the flame spread behavior was categorized into three different regimes, continuous, discrete, and quenching, and the regimes were presented in a flammability map. Visual analysis of top and side view video data were used to describe the changing flame behavior and increasing discretization of the overall flame structure as the flow speed increases. An analysis of the fluid mechanics and heat transfer conditions revealed a correlation between the Stanton number (St), the Damkohler number (Da), and the onset of flame instabilities and quenching.

Original languageEnglish
Pages (from-to)5109-5117
Number of pages9
JournalProceedings of the Combustion Institute
Issue number3
Publication statusPublished - 2021
Event38th International Symposium on Combustion, 2021 - Adelaide, Australia
Duration: 2021 Jan 242021 Jan 29


  • Flame spread
  • Flow-flame interaction
  • Quenching
  • Wind-driven fire
  • Wood combustion

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry


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