仿生微流道散热器结构优化及流动散热特性的研究

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1、ABSTRACTABSTRACTWiththecircuitintegratedelectroniccomponentsmoreandmore,thepowerofcircuitgethigher,andtheheatfluxofcircuitalsogetlarger,thatdecreasetheworkinglifeofcircuit.Designacoolingdeviceisaneffectivesolutiontosolvetheproblemofheattransferforcircuit.Acoolingdevicecools

2、thecircuit,electroniccomponentsinthecircuitcanworkinlow-temperaturecondition,workinglifeofcircuitwouldbeextended.Therearelotsofmicrochannelsexistinnature.liquidflowsinthesemicrochannelsconsumeslesspowerandhaveaneffectivewaytoexchangeenergy,Liquidcoolingdeviceasakindofeffect

3、ivecoolingdevicewhichhasbeenwidelydiscussedalsoneedaneffectivewaytoexchangeenergyandconsumeslesspowertoflow.Itcanlearnformthenaturalmicrochannels.InspiredbythewingveinofLepidopteraandleafveinoftrees,twodesignmentsofbionicmicrochannelforelectronicchipscoolingaredeveloped.Lep

4、idopterawingveinandleafveinhasbeenmeasured.ObservationshavebeenanalyzedaccordingtoHagen-PoiseuilleLaw.Observationsandanalysisdeterminetheparametersoftwobionicmicrochannels.Usingfluiddynamicsfiniteelementanalysissoftware(FLOEFD.Lab10.0)analyzestwobionicmicrochannelsandimprov

5、esit.Thesetwobionicmicrochannelscomparwithfractal-likebranchingmicrochannelandparallelmicrochannel,itprovidesastrongerheattransfercapability,lowerliquidflowpowerconsume.Finally,setupexperimentaldevicesfortwobionicmicrochannelsandfractal-likebranchingmicrochannelandparallelm

6、icrochannel.Testthesefourkindsofmicrochannelsprovethetwobionicmicrochannelshavemoreeffectiveflowandstrongerheattransfer.Keyword:bionicmicrochannel,wingvein,leafvein,ractal-likebranchingmicrochannel,parallelmicrochannelII万方数据目录目录第一章绪论.........................................

7、...................................................................-1-1.1课题背景及意义..........................................................................................-1-1.2国内外研究现状..........................................................................................-

8、4-1.2.1国内外微流道散热研究现状............................................................-4-