电子器件 技术文件COMSOL-Multiphysics-V5p0-TipsandTricks

COMSOLMultiphysicsVersion5.0

TipsandTricksGeneralGUIfeaturesChangethecanvas(i.e.3Dbackgroundcolor)byeditingthetargetofyourCOMSOLicon"C:\ProgramFiles\COMSOL\COMSOL50\Multiphysics\bin\win64\comsol.exe"-Dcs.canvascolor=255,255,120,255,255,204ChangetheGUIlanguageFile>Preferences>GeneralCheckforupdatesatlaunchFile>Preferences>UpdatesModelLibraryandApplicationLibraryupdatesFile>Help>UpdateCOMSOLModelLibraryRGBcodesfortopcolor,bottomcolorGeneralGUIfeatures(cont’d)SeewhatmodulesyourlicenseincludesFile>LicensedandUsedProductsControlwhichmodulesyourmodelusesanddoesn’tuseBasicGUIoperationsRenamingnodesGroupphysicsnodesbyspacedimensionLetyougroupallyourvolumeterms,allyourBCs,etcGroupDefinitionsbytypeRotatearoundasmallfeatureSelectthefeatureandclickZoomSelectedThisresetsthecamera’scenterofrotationViewsLookatamodelfromdifferentviewpointsControllightsourcesControltransparency,wireframerenderingDisplayentitylabelsHidestuff:Distinctionbetweenhidinggeometryentitiesandhidinggeometricobjects.SelectionsUse“Selections”togroupdomains,boundaries,edges,pointsthatarelogicallyconnectedVeryusefulifyouneedtorefertothesegroupingsmultipletimesCreateaselectionfromaphysicsnodeusingCreateSelectionorCopy/PasteSelectionbuttons…orcreatethemfromtheDefinitions>ViewnodeBalls,blocksandcylindersBooleanoperationsonselections,AdjacencyUsetheSelectionListwindowSelectionscanalsobedefinedintheGeometryandResultsnodesSomeunderappreciated

geometrycapabilitiesParametricsurfacesandcurves“Standard”useElevationmapsCapFaces(requiresCADimportproduct)VirtualOperationsSomenewgeometrycapabilities

Midsurface,ThickenChamfer,FilletLoftThesecapabilitiesrequiretheDesignModuleMTFCLVirtualOperationsUsevirtualoperationstorefineyourmeshlocallywithoutintroducingunnecessarydomainsandboundaries,andwithoutforcingmeshfacestomatchanyparticularsurfaceMeshingNon-basicmeshingSweptmeshhigh-aspect-ratiopartsUsedistributionsUsedifferentelementtypesinasinglemodel(tets,prisms,bricks)ConverttotetsSweepN-to-MNon-conformalmeshesMaterialsCreateyourownmaterialsCreateandmanageyourownmateriallibrariesGeometryUnitsfordrawingvsunitsforphysicsInsertaSequenceCreateanduseageometrysubsequenceGeometryprogrammingPlottingpre-orpost-processinginformationPlotfunctionswiththePlotbuttonYourownFromthemateriallibraryUse”GetInitialValues”/”UpdateSolution”/“ComputetoSelected”toplotquantitiesonthegeometrywithoutunnecessarily(re-)solvingthemodelPost-processingUseSelectionsandDeformationplotstocreatespectacularplotsPost-processingwhilesolvingSpotanincorrectmodelset-upwithoutwaitingforalongmodeltofinishrunningThe“Show”ButtonGetaccesstoadvancedoptionsAdvancedPhysicsOptions(Globalequations,Globalconstraints,Weakcontribution)DiscretizationEquationViewNamesofpredefined/yourownquantitiesViewdependentvariablenamesonthetopphysicsnodeUsepost-processingexpressionstofindnamesofderivedquantitiesOruseEquationviewWhennamingyourownquantities:Useonlyletters,numbersand_(underscore)Picknon-trivialnames:stayawayfromx,y,z,eps,h,etc…ReferenceGuidev5.0245formostpredefinednamesandnamingconventionsGettingthem