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页数:13页
时间:2019-06-28
《流固耦合的论文Implicit fluid–structure coupling for simulation英文学习材料》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、INTERNATIONALJOURNALFORNUMERICALMETHODSINFLUIDSInt.J.Numer.Meth.Fluids2002;40:467–478(DOI:10.1002/d.306)Implicituid–structurecouplingforsimulationofcardiovascularproblemsJ.M.T.Penrose1;∗andC.J.Staples21DepartmentofMedicalPhysicsandClinicalEngineering;UniversityofShe
2、eld;RoyalHallamshireHospital;GlossopRoad;SheeldS102JF;U.K.2AEATechnologyEngineeringSoftware;Building8.19Harwell;Didcot;Oxon.OX11OQJ,U.K.SUMMARYAthree-dimensional(3-D)transientsolid–uidcouplingsystemhasbeendevelopedinordertostudycardiovascularsystemsanddevices.Thesyst
3、emutilizedtwocommercialimplicitsolvers,whichex-changedboundaryparametersfromseparatemeshesoveracommoninterface.Facilitywasmadeforthespatialinterpolationoftheseexchangeparameterssothatthesolidanduiddomainmeshesneednothavesimilardensityortopology.Stabilityalgorithmswere
4、addedtotheiterativecouplingprocess,aswerealgorithmstosmoothorentirelyremeshtheuiddomaininteriorsubjecttothedeformationsimposedatthesolid–uidinterface.Severalapplicationscenarioswereundertaken,wherebysimulationresultscouldbecomparedtoeitheranalyticalordetailedexperime
5、ntaldata.Itwashopedtheywouldalsooerfurtherinsightintotheoperationofanumberofclinicaldevices.Theresultsofthesecom-parisonsshowthatthesimulationofcomplexcardiacsystems,withnon-linearsolid–uidinteractions,cannowbeachievedwithsucientaccuracytobeofsignicantbenettomanuf
6、acturers.Copyright?2002JohnWiley&Sons,Ltd.KEYWORDS:FEA;CFD;uid–structurecoupling;cardiovascular1.INTRODUCTIONOvertheyears,implantableandextra-corporealdeviceshavesignicantlyimprovedthelife-expectancyandqualityoflifeofpatientssueringfromcardiovasculardisease.However,
7、therearealsosignicantproblemsandcomplicationsassociatedwithmanyofthesedevices.Thesecouldbepartiallyaddressedbybetterdesignworkarisingfromabetterunderstandingofthefunctionofthesedevices,andtheirinteractionwiththeirphysiologicalsurroundings[1].Simulationofthesesystemsca
8、nprovidevaluableinformationthatcanbefedbackintothedesignprocess.Thus,dierentmaterialsandgeometriescanbeevaluatedrela
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