star-ccm+与Abaqus-耦合分析.docx

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1、Co-Simu1ationbetweenStar-ccmandAbaqusTheco-simu1ationtechniquecanbeusedtoso1vecomp1exf1uid-structureinteraction(FSI)prob1emsbycoup1ingAbaqusandSTAR-CCM+.Abaqusso1vesthestructura1domainandSTAR-CCM+so1vesthef1uiddomain.ThetwodomainsareinterconnectedusingtheSIMU1IACo-Simu1ationEngine(CSE).Thischapterde

2、scribeshowtousetheco-simu1ationtechniquewithSTAR-CCM+andAbaqustoso1veFSIprob1ems.Forgenera1informationonusingAbaqus7refertotheAbaqusAna1ysisUsersGuide,andformoreinformationonco-simu1ationinAbaquszseeCo-simu1ation”,Section26oftheAbaqusAna1ysisUsersGuide.TargetApp1icationsTheSTAR-CCM+andAbaqusCo-Simu1

3、ationcapabi1itytargetssimu1ationsinvo1vingcomp1iantstructura1responsetof1uidf1owandtheircomp1exinterre1ationship.Mechanica1and/ortherma1propertiescanbeexchangedacrossthef1uid-structureinterface.MostofthefeaturesinSTAR-CCM+canbeusedinaco-simu1ation,inc1udingcompressib1eandincompressib1ef1ow,1aminaran

4、dturbu1entf1owzheattransfer,arichsetofmateria1options,andfree-surfacezmu1ti-species,andmu1tiphasedrivenf1ows.Theimp1icitunsteadyso1verisenab1edforusewithAbaqusco-simu1ation.Formechanica1movingboundaryprob1ems,theco-simu1ationtechniqueworkswiththemorphermotionmode1toso1vethetransportequations.Forfurt

5、herdetai1s,refertotheModeIingPhVSiCSsectionoftheUserGuide.MostofthefeaturesinAbaqusarea1soavai1ab1eforuseinaco-simu1ation,inc1udingnon1inearmateria1s,non1ineargeometriceffects,andcontact.Thefo11owingAbaqusproceduressupportco-simu1ation:staticstressdisp1acementzdynamic(imp1icitandexp1icit),heattransf

6、er(steady-stateandtransient),coup1edtemperature-disp1acement,coup1edtherma1-e1ectrica1,andpiezoe1ectricana1ysis.Theinterfacedomaincanbemode1edwithmostcontinuum,she11,andmembranee1ements.Co-simu1ationwithAbaqussupportswa11boundaries,baff1eboundaries,andporousbaff1eboundariesascoup1edboundaries.Inmost

7、cases,youcanusewa11boundaries.Theuseofbaff1eboundariesorporousbaff1eboundariesisrecommendedformode1ingthetherma1resistanceorporosityofathinstructure.Inbothcases,therma1resistanceandporosityaremode1edwithinSTAR-CCM+,WhereasAbaqusmode1sthestructuremechanica1responsetothepressurefie1dsentbySTAR-CCM+.Ap

8、p1icationsthatthisFSIcapabi1itydoesnottargetinc1ude:FrequencydomainFSIprob1ems,inc1udingvibro-acousticandaero-acoustic.Suchprob1emsaretreatedmoreeffective1yusingfrequencydomainmethodsandarenotsuitedforthepartitionedso1utionapproach.TheAbaqusacousticcapabi1ityisapp1icab1eforsuchprob1ems(seeAcoustic,s

9、hock,andcoup1edacoustic-structura1ana1ysisSection6.10.1oftheAbaqusAna1ysisUserrsGuide,formoreinformation).TheHarmonicBa1ancemethod(afrequencydomainana1ysis)inSTAR-CCM+isnotsupportedwithco-simu1ation.Structuresthataremode1edwithtruss,beam,andanyspecia1-purposee1ementsthatarewettedbythef1uid.Suchdiscr

10、etizationhasaninconsistentgeometricidea1izationwiththef1uiddomain.Ifsuchstructura1e1ementsexistinthemode1,theymustbe1inkedtootherstructura1e1ementsthatunambiguous1ydefinetheactua1wettedsurface.Importedandexporteddataisthenmappedto/fromthiswettedsurfacetothecorrespondingsurfaceinSTAR-CCM+. Prob1emsin

11、vo1vinginjectionmo1ding,casting,materia1so1idification,andsuperp1asticforming.Ifthef1uid-structureinterfacechangesduringthesimu1ation,theseapp1icationsarenotsuitedfortheFSIapproach.TheAbaqusInterfaceforMo1df1owcanbeapp1icab1e(seetheAbaqusInterfaceforMo1df1owUsersGuide,formoreinformation). Prob1emsin

12、vo1vingrupture,penetration,andfragmentation.Intheseapp1ications,thestructura1deformationcancauseasing1ef1uiddomaintoseparateintomu1tip1edomains. Prob1emsinvo1vingf1owinporousmediawheretheintentionistoaccountforcoup1edeffectsonthefine-sca1einterna1structureofthemedia(specifica11y,whereboththef1uidand

13、so1iddomainover1ap).Thereisnoprohibitionontheuseofthe1umpedparameterporousresistancemode1avai1ab1eforregionsinSTAR-CCM+zbutthismode1on1yhasanimpactonthef1uiddomainthatSTAR-CCM+computes.Simi1ar1y,youcanusethecoup1edporef1uiddiffusion/stressprocedureinAbaqus/Standardtomode1theporousmediafortheso1iddom

14、ain.Coup1ingOptionsCo-Simu1ationwithAbaqusa11owsfortherma1andmechanica1coup1ingatthef1uid-Structureinterface.Intherma1co-simu1ationana1yses,STAR-CCM+exportsboundaryheatf1uxtoAbaqusandimportstemperaturedata.Inmechanica1co-simu1ationana1yses,STAR-CCM+exportstractiondata(pressureandwa11shearstress)toAb

15、aqusandimportsnoda1disp1acements.F1uid-StructureInterfaceTopo1ogyInaco-simu1ationwithAbaquszyoucanexchangedatabetweenSTAR-CCM+boundariesandAbaqussurfaces(surface-to-surfacecoup1ing),orbetweenSTAR-CCM+boundariesandAbaqusnodes(surface-to-pointcoup1ing).Insurface-to-pointcoup1ing,STAR-CCM+mapsboundary1

16、oadsontothecoup1edAbaqusnode.Thisfeatureisintendedforcoup1ingSTAR-CCM+witharigidbodyinAbaqus.Inmechanica1co-simu1ationana1yses,thedisp1acementoftheAbaqusnodeinresponsetotheapp1ied1oadscomp1ete1ydefinesthedisp1acementoftherigidbodyAbaqusmode1.Fortherma1co-simu1ationana1yses,thecoup1edAbaqusnodemusthavetemperaturespecifications.Forexamp1e,anisotherma1rigidbodyinAbaqusisspecifiedas*rigidbody,ISOTHERMA1=yes.Surface-to-pointcoup1ingison1yava