Quenching extinction of solid sphere diffusion flames induced by a sudden removal of gravity

The response of a diffusion flame around a PMMA solid sphere to a sudden transition to zero-gravity is investigated both experimentally and numerically. The initial flame is established in normal gravity with a low speed forced flow in a 17% oxygen by volume atmosphere. An abrupt (step change) norma...

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Veröffentlicht in:	Fire safety journal 2024-06, Vol.146, p.104137, Article 104137
Hauptverfasser:	Johnston, Michael C., T′ien, James S., Hsu, Sheng-Yen, Wu, Ching-Wei, Olson, Sandra L., Ferkul, Paul V.
Format:	Artikel
Sprache:	eng
Schlagworte:	energy balance fire safety Flame extinction Flame quenching heat mathematical models Microgravity oxygen PMMA temperature Thermally-thick solid Transient flame response zero gravity
Online-Zugang:	Volltext
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