Abstract

　　Abstract

　　heat usedinair and

　　Fin-·and·-tube is widely

　　exchanger conditioning

　　fieldsforits andsmallvolume．Not

　　petrochemical structure，light

　　compact weight

　　doestheresearchontheruleofheattransferofthetube—nnheat

　　only exchanger

　　have theoreticalvaluebutalso economicvaluein

　　high higher engineering

　　application．

　　Themainheatresistanceoffinnedtubeheat comesfromthe

　　exchanger

　　the finsaneffectivemeasurewhichcanincreasethe

　　of is

　　air-side．Improvingshape

　　heattransferofairside．In

　　this numericalsimulationiscarriedout

　　thesis，a study

　　ontheflowintheairsideandthe ofheattransferoftube fin，

　　process plain

　　finand fin．Theinlet

　　average-angle-wavefin，plain-waveincrease-angle—wave

　　offourkindsofmodels from number

　　velocity ranges O．5m／s-5．Om／s(Reynolds

　　of the modelwecould

　　151．5-1603．9)insame eachofthe

　　ranger conditions，for

　　calculate 10setsofdatatoobtainthedistributionof field

　　respectively temperature

　　andfluidfield oftheFLUENTWecouldfetchthe

　　pressure．Wi也thehelp

　　thatwe fittedthecurves

　　demand,such

　　parameters