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1、TRANSACTIONONCONTROLANDMECHANICALSYSTEMS,VOL.1,NO.8,PP.362-369,DEC.,2012.DeterminingNaturalConvectionHeatTransferCoefficientofHumanBodyAhmadNajjaranAbstract:Inthispaper,theaimisobtainingconvectionanalyticalsimulationtheseconditionswouldsetasaninput.coefficientofhumanbody.At
2、firsta3DhumanbodyhasbeenAlsoduetocalculatinguptosomedecimals,theaccuracydesignedbyunstructuredgrids.Feetandhandsarestretchedofthecalculatingismuchmorethantheexperimentalcompletelyinconsideredsample.Twosegments(standingandmeasurementswhichhavelimitations.Insomestudiessupine)
3、areconsideredforbody.Solesandthebackofentireconvectionheattransfercoefficientisdeterminedbyusingbodyareconsideredincontactwiththegroundrespectivelyintheratioofaspecificsurfaceareatotheentirebodyareathesesegments.Otherpartsofhumanbodyareexposedtosurroundingair.Theheattransfe
4、randthebodytemperatureandbyuseofthelocalcoefficient.Inmostofthesestudiesareassumedsteadyandconstant.Theresultsareobtainedbytheaccuracyoftheresultsisdecreasedbecauseofignoringapplyingfinitevolumemethodforeachgridandextractedbysurfaceswhichdon’thaveanyconvectionheattransferwi
5、ththeweightedareamethod.Thentheattainedresultsaresurroundingair.Thenaturalconvectioncoefficientisvalidatedwiththerecentexperimentalresults.Goodcalculatedinexperimentalresearchrelatedtotemperatureagreementisobservedbetweentheobtainedresultsandthedifferencewhichiscorrectedbyw
6、eightedareamethod.Ofpreviousexperimentalresults.Finallytwoformulasarecourseinthismethod,therelationbetweenheattransferderivedfornaturalconvectioncoefficientofhumanbody.coefficientwithheatfluxandtemperaturedifferenceisassumedtobelinear[2].In1996Dear[36]calculatedthisKeywords
7、:ConvectionHeatTransferCoefficient,Standing,Supine,coefficientinapaperwiththesamecontent.ButheHumanBody,NumericalSimulationdeterminedthecoefficientforeachpartofthebodyseparatelyandinthelimitednumber.1.IInpreviousstudies,heattransferofthebodyhasbeenNTRODUCTIONdeterminedexper
8、imentallybyuseofthesimplethermalTheforcedconvectionprocess,isaprocessinwhichequipm
