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1、ARTICLEINPRESSFireSafetyJournal44(2009)230–240ContentslistsavailableatScienceDirectFireSafetyJournaljournalhomepage:www.elsevier.com/locate/firesafModelingthermalbehaviorsofwindowflameejectedfromafirecompartmenta,bbcKeisukeHimoto,TsunetoTsuchihashi,YoshiakiTanaka,TakeyoshiTanakaaPion
2、eeringResearchUnitforNextGeneration,KyotoUniversity,Gokasho,Uji,Kyoto611-0011,JapanbGeneralBuildingResearchCorporationofJapan,Fujishirodai5-8-1,Suita,Osaka565-0873,JapancDisasterPreventionResearchInstitute,KyotoUniversity,Gokasho,Uji,Kyoto611-0011,JapanarticleinfoabstractArticlehis
3、tory:Aseriesofreduced-scaleexperimentswerecarriedoutinordertoinvestigatethermalbeha-Received1November2006viorsofwindowflame,whichexposestheupperfloorsaswellastheadjacentbuildingstoReceivedinrevisedformpotentialrisksoffirespread.Astainlesspanfilledwithalcoholwasusedasthefiresourceand14Ma
4、y2008wasplacedinsideacubiccompartmentof900mmside.TemperaturesandvelocitiesatvariousAccepted21June2008pointsinsideandoutsideofthecompartmentweremeasured.Thecompartmentwaspressu-Availableonline9August2008rizedduringtheexperimentbymechanicallysupplyingairatseveralmassinflowratesthrough
5、anKeywords:inletductsetatthebottompartofthecompartment.ThiswasforsimulatingfireconditionsunderFirespreadtheeffectofexternalwindpressure.Onthebasisoftheexperimentalobservation,lineWindowflame(i.e.,two-dimensional)heatsourceassumptionwasadoptedfordevelopingamodelofwindowTemperaturerise
6、0flamebehavior.AdimensionlessparameterQwasderivedfromthegoverningdifferentialReduced-scaleexperimentequationsinordertogeneralizethemeasurementresults.ExpressionsfortemperatureriseScalemodelalongthetrajectoryDTmandcharacteristicflamewidthbTweredevelopedincorporatingthe0parameterQ.&2
7、008ElsevierLtd.Allrightsreserved.1.Introductionbyentrainingquiescentambientairasgettingapartfromtheopening.However,expressionsoriginallydevelopedforverticallyWhenafireinsideacompartmentdevelopstobeatitsascendingplumesarecommonlyadoptedingeneralizingwindowmostvigorousstage,flameswould
8、beejectedfromtheopeningflam
