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<p>Watermark: Fire Safety Academy logo icon, 70 px, 45 % opacity</p> <p><b>New page</b></p><div>== Summary ==<br /> Outflow velocity in the doorway of the worked example, from the two-layer formula. Based on Emmons (2002), pp. 2-37–2-39.<br /> <br /> Original illustration for [[Vent flow]], level 4 Expert.<br /> <br /> * Source basis: Emmons (2002), p. 2-37 (Equation 32, two-layer method; inflow cannot be determined with sufficient accuracy) and p. 2-39 (example data: 1.83 m by 0.737 m vent, neutral axis 1.00 m, Ta = 294.3 K, Tu = 411.9 K)<br /> * Alt text: Chart of height in a doorway against outflow velocity: zero at 1.0 m, rising along a square-root curve to about 2.6 m/s at 1.83 m.<br /> <br /> == Licensing ==<br /> New drawing by Fire Safety Academy. © Fire Safety Academy.</div>

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