File:Fse-froude-scaling-v1.svg

Fse-froude-scaling-v1.svg (SVG file, nominally 900 × 600 pixels, file size: 9 KB)

Summary

A 30.5 m atrium and its 1/8 scale model. Heat release rate and fan flow shrink with the length ratio to the power 5/2, time with its square root; temperatures stay the same. Based on Milke (2002b), pp. 4-294–4-295.

Original illustration for Froude scaling, level 4 Expert.

Source basis: Milke (2002b), p. 4-294 (scaling relations, Eqs. 1–7) and p. 4-295 (Example 1 and Figure 4-13.2, small-scale model of atrium: redraw, do not copy)
Alt text: A tall atrium with a 5 MW fire next to a model one eighth its height with a 28 kW fire, with the scaled values listed.

Licensing

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

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:36, 2 November 2026		900 × 600 (9 KB)	Jan (talk \| contribs)	Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity

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Froude scaling

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Short title	A 30.5 m atrium and its 1/8 scale model. Heat release rate and fan flow shrink with the length ratio to the power 5/2, time with its square root; temperatures stay the same. Based on Milke (2002b), pp. 4-294–4-295.
Image title	A tall atrium with a 5 MW fire next to a model one eighth its height with a 28 kW fire, with the scaled values listed. Source basis: Milke (2002b), p. 4-294 (scaling relations, Eqs. 1–7) and p. 4-295 (Example 1 and Figure 4-13.2, small-scale model of atrium: redraw, do not copy)
Width	900
Height	600