File:Fse-thomas-plume-v1.svg

Fse-thomas-plume-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 7 KB)

Summary

The Thomas formulation relates mass flow to source perimeter and rise height. Based on Heskestad (2002), chapter 2-1, p. 2-12, and Van Rossum (2027), §6.7.

Original illustration for Thomas plume, level 3 Advanced.

Source basis: Heskestad (2002), chapter 2-1, p. 2-12; Van Rossum (2027), §6.7.
Alt text: A broad fire is dimensioned by its perimeter and the height to the smoke layer.
Accuracy notes: Measure z to the layer underside; do not use the room perimeter.

Licensing

New drawing by Fire Safety Academy. © Fire Safety Academy.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:29, 2 November 2026		900 × 600 (7 KB)	Emma (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Thomas plume

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Short title	The Thomas formulation relates mass flow to source perimeter and rise height. Based on Heskestad (2002), chapter 2-1, p. 2-12, and Van Rossum (2027), §6.7.
Image title	A broad fire is dimensioned by its perimeter and the height to the smoke layer. Source basis: Heskestad (2002), chapter 2-1, p. 2-12; Van Rossum (2027), §6.7.
Width	900
Height	600