File:Fse-opposed-flow-flame-spread-v4.svg

Fse-opposed-flow-flame-spread-v4.svg (SVG file, nominally 900 × 600 pixels, file size: 9 KB)

Summary

Orders of magnitude of spread rates. Lateral or downward (opposed-flow) spread on thick solids is about 0.1 cm/s, far slower than upward spread. Based on Quintiere (2002b), p. 2-247.

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

Source basis: Quintiere (2002b), p. 2-247, Table 2-12.1 "Relative flame spread rates (order of magnitude)" (redraw as a chart, do not copy)
Alt text: Range bars on a log scale from 0.001 cm/s for smouldering to 300,000 cm/s for detonation, with lateral or downward spread near 0.1 cm/s.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:12, 2 November 2026		900 × 600 (9 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	Orders of magnitude of spread rates. Lateral or downward (opposed-flow) spread on thick solids is about 0.1 cm/s, far slower than upward spread. Based on Quintiere (2002b), p. 2-247.
Image title	Range bars on a log scale from 0.001 cm/s for smouldering to 300,000 cm/s for detonation, with lateral or downward spread near 0.1 cm/s. Source basis: Quintiere (2002b), p. 2-247, Table 2-12.1 "Relative flame spread rates (order of magnitude)" (redraw as a chart, do not copy)
Width	900
Height	600