摘要
Inthepresentstudy,computationalfluiddynamics(CFD)isusedtoinvestigateinspiratoryandexpiratoryairflowcharacteristicsinthehumanupperrespiratorytractforthepurposeofidentifyingtheprobablelocationsofparticledepositionandthewallinjury.Computedtomography(CT)scandatawasusedtoreconstructathreedimensionalrespiratorytractfromtracheatofirstgenerationbronchi.Tocompare,asimplifiedmodelofrespiratorytractbasedonWeibelwasalsousedinthestudy.Thesteadystateresultsareobtainedforanairflowrateof45L/min,correspondingtotheheavybreathingcondition.Thevelocitydistribution,wallshearstress,staticpressureandparticledepositionarecomparedforinspiratoryflowsinsimplifiedandrealisticmodelsandexpiratoryflowsinrealisticmodelonly.Theresultsshowthatthelocationofcartilaginousringsissusceptibletowallinjuryandlocalparticledeposition.
出版日期
2013年06月16日（中国期刊网平台首次上网日期，不代表论文的发表时间）
