Contents
Fse-trench-effect-v4.svg (SVG file, nominally 900 × 600 pixels, file size: 8 KB)
Summary
Walls restrict the air entrained by a flame: a flame against a wall entrains from half of its perimeter, and walls and corners lengthen the flames. Based on Iqbal and Salley (2004), pp. 4-1 and 4-2.
Original illustration for Trench effect, level 4 Expert.
- Source basis: Iqbal and Salley (2004), p. 4-1 (restriction of free air entrainment near walls and corners lengthens flames; wall flame entrains from half its perimeter) and p. 4-2 (corner fires more severe due to radiative exchange between burning walls)
- Alt text: A fire in the open, against a wall and in a corner, with entrained air from all round, from half and from a quarter; the flames get longer.
Licensing
New drawing by Fire Safety Academy. © Fire Safety Academy.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:13, 2 November 2026 | | 900 × 600 (8 KB) | Jan (talk | contribs) | Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity |
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