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1、Lecture6ACoolingTechniques:FansandHeatSinksReducingTemperaturesProblem:WehaveacomponentthatistoohotWecanreducethecomponenttemperaturebyincreasingtheheattransferawayit.Wecan:AddafanAddaheatsink2Howdoweaddafan?DraganddropfromLibraryManagerCreateoneusingthefansmartpart3LibraryManagerToaccesst
2、heFLOTHERManduserlibraries,whichcontainfrequentlyuseddesignsandattributes,usetheLibraryManager.TheLibraryManagerisnotdisplayedbydefault,tosavespace.ThequickestwaytodisplaytheLibraryManageristoclickorchoose[Edit/Library].Alternatively,double-clickF7.TheLibraryManagerappearstotherightofthedi
3、splaywiththeNewObjectPalettelocatedhorizontallyaboveit.SavingObjectsandAttributestotheLibraryGeometryandattributescanbedraggedfromtheprojectdatatreeanddroppedonalibrarynodetobesavedinthelibrary.LoadingObjectsandAttributesfromtheLibraryGeometrycanbedraggedfromtheLibraryManageranddroppedonap
4、rojectassemblynodeintowhichthegeometryiscopied.AttributescanbedraggedfromtheLibraryManageranddroppedontotheprojectdatatreeatageometrynodethatallowsthattypeofattributetobeattached,attachingtheattributetotheobject.Droppingattributesontomultipleselectionsisnotallowed.4FanSmartPartModelingchoi
5、ces:AxialFanSingleTube-AxialFanRectangularFanFanTrayUpstreamFanOutflowfromDuctingRadialBlowerFanLibraries:Papst,ComairRotron,ETRI,NMBMicronel,Delta,SanyoDenkiwww.SmartParts3D.comisanadditionalresource.5FanOptionsThefanspecificationscanbechangedusingtheConstructiondialog6FanOptionsModelling
6、LevelsRecommendedformostapplications7More“refined”modelingchoices-3D,8facetsand3D12facetsarenotalwaysmoreaccurate.Acarefulexaminationofthephysicsrevealsthatinmostcases,theincreaseinaccuracyisnegligible.Thereare,ofcourse,exceptionstothisrule.Insomecases,whenacriticalcomponentislocatedverycl
7、osetothefanplane,abetterrepresentationofthecircularcontourmaybenecessary.Ingeneral,theuserisadvisedtousethe3D,4facetsoptionasthemodelinglevelofchoicewhenusingFLOTHERM.Youcanlocatethefananywhereinthesolutiondomain,asinternalfansoronthefaceoftheoveralldomain.Fan
