Airpak30 经典实例教程.pdf

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1、Tutorial1.OfficeVentilationIntroduction:Thistutorialdemonstrateshowtomodelanofficesharedbytwopeopleworkingatcomputers,usingAirpak.Inthistutorial,youwilllearnhowto:•Openanewjob•Includeeffectsofrelativehumiditydistributioninthesimulation•Createblocks,openings,vents,

2、partitionsandwalls•Modeltheeffectsofradiation•Changethenumberofsolveriterations•Calculateasolution•Examinecontoursandvectorsonobjectfacesandcross-sectionsofthemodel•Traceparticlestreamsfromairinlets•Examinethecomfortlevelintheroombycalculatingthepredictedmeanvo

3、te(PMV)andpredictedpercentagedissatisfied(PPD)Prerequisites:ThistutorialassumesthatyouhavelittleexperiencewithAirpak,butthatyouaregenerallyfamiliarwiththeinterface.Ifyouarenot,pleasereviewthesamplesessioninChapter1oftheUser’sGuide.ProblemDescription:Theofficeispa

4、rtitionedintotwosections,eachcontainingonepersonworkingatacomputer,asshowninFigure1.1.Theofficealsoincludessixfluorescentlights,abaseboardheater,aninletdiffuser,aventilationreturn,andawindow.Surfacetemperaturesandairvelocityprofilesaresoughtinordertodeterminetheove

5、rallcomfortoftheroomforitsoccupants.Table1.0.1:Geometrical,Thermal,andFlowBoundaryConditionsfortheDiffuserandWindowSizeTemperatureVelocityInletDiffuser0.2m×0.3m13.5◦C0.85m/sWindow3.65m×1.16m30.9◦C—–cFluentInc.May16,20071-1OfficeVentilationTable1.0.2:SizeandCapac

6、ityoftheHeatSourcesHeatSourceSizePowerBaseboardHeater1.2m×0.1m×0.2m1500WPerson0.4m×0.35m×1.1m75WComputer10.4m×0.4m×0.4m108WComputer20.4m×0.4m×0.4m173WLamp0.2m×1.2m×0.15m34WFigure1.1:GeometryoftheOfficeVentilationProblem1-2cFluentInc.May16,2007OfficeVentilationSt

7、ep1:OpenandDefineaNewJob1.StartAirpak,asdescribedinSection1.5oftheUser’sGuide.WhenAirpakstarts,theNew/existingpanelwillopenautomatically.2.ClickNewintheNew/existingpaneltostartanewAirpakproject.TheNewprojectpanelwillappear.(a)SpecifyanameforyourprojectintheProj

8、ecttextbox.Youcanenterthenameoffice.(b)ClickCreate.Airpakwillcreateadefaultroomwithdimensions10m×3m×10m,anddisplaytheroominthegraphicsdisplaywindow.Youcanrotatetheroomaroundacentra