File:Fse-opposed-flow-flame-spread-v2.svg

Fse-opposed-flow-flame-spread-v2.svg (SVG file, nominally 900 × 600 pixels, file size: 8 KB)

Summary

Energy balance for opposed-flow spread over a thin fuel: the gas flows towards the flame at speed Vg, and the flame heats the fuel over a length Δ from Ts to the ignition temperature Tig. Based on Quintiere (2002b), p. 2-248.

Original illustration for Opposed-flow flame spread, level 4 Expert.

Source basis: Quintiere (2002b), p. 2-248, Figure 2-12.1 "Energy conservation analysis in opposed flow spread" (redraw, do not copy), Equations 3 to 5
Alt text: Cross-section of a thin fuel layer with a flame above its pyrolysis region and a dashed control volume ahead of the flame.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:12, 2 November 2026		900 × 600 (8 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Opposed-flow flame spread

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Short title	Energy balance for opposed-flow spread over a thin fuel: the gas flows towards the flame at speed Vg, and the flame heats the fuel over a length Δ from Ts to the ignition temperature Tig. Based on Quintiere (2002b), p. 2-248.
Image title	Cross-section of a thin fuel layer with a flame above its pyrolysis region and a dashed control volume ahead of the flame. Source basis: Quintiere (2002b), p. 2-248, Figure 2-12.1 "Energy conservation analysis in opposed flow spread" (redraw, do not copy), Equations 3 to 5
Width	900
Height	600