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Conference Paper: Solution multiplicity of smoke flows in a simple building

TitleSolution multiplicity of smoke flows in a simple building
Authors
KeywordsBuoyancy flows
Opposing winds
Smoke
Smoke flows
Solution multiplicity
Issue Date2008
PublisherInternational Association for Fire Safety Science.
Citation
The 9th International Symposium on Fire Safety Science (IAFSS), Karlsruhe, Germany, 21-26 September 2008. In Proceedings of IAFSS, 2008, p. 895-906 How to Cite?
AbstractFor a simple single-zone building on fire with two openings and opposing wind, a theoretical analysis of smoke flow rate and smoke flow direction is carried out. With the same setting of building geometry and physical conditions at steady state, three solutions of smoke flows are identified. Fundamental concepts of nonlinear dynamics are used to show that two of these solutions are stable. One stable solution allows the establishment of the two-layer flow pattern with an upward smoke flow, which may be considered relatively safe in terms of control of smoke flows. The other stable solution is a potentially unsafe situation of downward smoke flow pattern with smoke filling the entire building. We believe that existence of solution multiplicity of smoke flows in this simple building demonstrates that a further study of more complex and realistic situations is necessary. Copyright © 2008 International Association For Fire Safety Science.
DescriptionCompartment Fires III
Persistent Identifierhttp://hdl.handle.net/10722/126338
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorGong, Jen_HK
dc.contributor.authorLi, Yen_HK
dc.date.accessioned2010-10-31T12:22:55Z-
dc.date.available2010-10-31T12:22:55Z-
dc.date.issued2008en_HK
dc.identifier.citationThe 9th International Symposium on Fire Safety Science (IAFSS), Karlsruhe, Germany, 21-26 September 2008. In Proceedings of IAFSS, 2008, p. 895-906en_HK
dc.identifier.issn1817-4299en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126338-
dc.descriptionCompartment Fires III-
dc.description.abstractFor a simple single-zone building on fire with two openings and opposing wind, a theoretical analysis of smoke flow rate and smoke flow direction is carried out. With the same setting of building geometry and physical conditions at steady state, three solutions of smoke flows are identified. Fundamental concepts of nonlinear dynamics are used to show that two of these solutions are stable. One stable solution allows the establishment of the two-layer flow pattern with an upward smoke flow, which may be considered relatively safe in terms of control of smoke flows. The other stable solution is a potentially unsafe situation of downward smoke flow pattern with smoke filling the entire building. We believe that existence of solution multiplicity of smoke flows in this simple building demonstrates that a further study of more complex and realistic situations is necessary. Copyright © 2008 International Association For Fire Safety Science.en_HK
dc.languageengen_HK
dc.publisherInternational Association for Fire Safety Science.-
dc.relation.ispartofProceedings of the 9th International Symposium on Fire Safety Scienceen_HK
dc.subjectBuoyancy flowsen_HK
dc.subjectOpposing windsen_HK
dc.subjectSmokeen_HK
dc.subjectSmoke flowsen_HK
dc.subjectSolution multiplicityen_HK
dc.titleSolution multiplicity of smoke flows in a simple buildingen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLi, Y:liyg@hkucc.hku.hken_HK
dc.identifier.authorityLi, Y=rp00151en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.3801/IAFSS.FSS.9-895en_HK
dc.identifier.scopuseid_2-s2.0-80455125740en_HK
dc.identifier.hkuros180439en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80455125740&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume9-
dc.identifier.spage895en_HK
dc.identifier.epage906en_HK
dc.description.otherThe 9th International Symposium on Fire Safety Science (IAFSS), Karlsruhe, Germany, 21-26 September 2008. In Proceedings of IAFSS, 2008, p. 895-906-
dc.identifier.scopusauthoridGong, J=36542553600en_HK
dc.identifier.scopusauthoridLi, Y=7502094052en_HK

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