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MJEASUREM1EN1rOlFMf1ClROCJLliMA1rJEWli1rlHfliNCJL01rlHflINGUJSIlNG 1f'HJECONBlfNA'f][ON'fJEClHINIlQUJEOlFlJNlFRARJEDlRAYAlBSOlPTIlON MJET1H10DANDlHfOLOGRAJPlBlIC][N'fJElR1FElRO恥'iIJEl'R1t
vaporpermeほest耐oughfilminthecaseofmor~ porosity.(併=0.68)thanin件=0.43. Thisfact sugeststhatthissuperimposedimageisefectivetounderstandthefilm-permeation behaviorsof vaporeasi1y.
10sec Fig.6Visualizationoftransientofpasingbehaviorsofvaporin
termsofsuperimposedimages
3.31fIr2rnsierntcorncerntnl!tiolID2!I1lrl:i1em]peJI'21tuerlInstIrnlbltim]s 3.3.1Thediferencedueωtheproperty0/.film
Figures7r-.J 10showthetransitionofconcen廿ationandtemperaturedistributionsalongthevertical lineatthecenterofthewidthoftestsectioncalculatedfromIRand阻 imageswithtimeprogres aftertheopeningofshuter.Asvaporpasesthroughcloth，airintheuperregionofclothfluctuates onalargescale.Therefore，itisnededtonoticethatthedistributionsafter10s(specialyat30s) wereafecteds仕o.nglybythisairf1uctuation.
Figures7and8showthediferenceintemperatureandconcentrationdistributionsdueto thicknesoffilm.Here，社leresultsat30swerenotusedfortheabove-mentionedreason.Wepay atentiontothe'shapeofconcentrationdis廿ibutionintheuperregionoffilm(Fig.7).Theshapeof thecaseoft=50Jlηsissteperthanthatinthecaseoft=10μn.withtheincreaseofdistance企om thefilm.Figure8sugeststhatheattransferslightlyextendedtouperregioninthecaseoffilm1 thaninthecaseoffim3.Fromtheseresults，itisfoundt4atvaporpasesmoreeasi1ythroughfilmfor itsthinerthicknes.Butitsdiferenceisalitle.
5
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LiqlUdSurface
Film
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LOW 30sec
