高密度組裝微通道對流換熱實(shí)驗(yàn)研究.pdf

1、西安電子科技大學(xué)碩士學(xué)位論文高密度組裝微通道對流換熱實(shí)驗(yàn)研究姓名：王迎昆申請學(xué)位級別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：賈建援20080101AbstractBasingonthemechanismsofmicrofluidiesandmicroheattransfertheories，theanalyticalresolutionsofvelocityfiledandtemperaturefiledwereobtainedforthec

2、onvectiveheattransferequationofmicroehannel(slor)consideringtheboundaryconditionsofvelocityslipandtemperaturejumpAndthenewexpressionofNusseltnumberandcoefficientoftemperaturejumpwereobtainedThecorrelationsoftheconvection

3、heattransferwereobtainedcombiningwitlltheboundaryconditionofaxialwallheatconductionThencomparedwiththeclassicalheattransfercorrelationsbyprocessingtheexperimentaldatatheexperimentalresultsceaifythatthetworesultsofNusselt

4、numberhaslittledifferenceItisshownthatbotIlofheattransfercorrelationsCallbeusedintheexperimentofconvectiveheattransferofml‘crochannelTheexperimentalequipmentofhighdensityassemblyWasestablished，theexperimentWasactualizeEx

5、perimentresultssuggestthattheNusseltnumberobtainedbyusingthemicroheattransfercorrelationsissignificantlylessthanclassicalvalueButinthemicroheattransfertheory$ellSe，theNusseltnumberderivedfromexperiment研tllconsideringthec

6、oefficientofveloci哆slipwhichexpressedwallcharacteristicismoreapproachtotheclassicaloneItisshownthatthedesignofmicrochannelCanonlybebasedonthetheoriesofmicroheattransferandtheclassicaltheoryCannotheUSedtomicrochanneldesig

7、nItisshownthatthehJighdensityassemblymicrochannelheatexchangerhasmanyadvantages，suchassmallsize，highheatnansferperformanceThegiventheoryCanheusedforthedesignofhigh—densityassemblyforcomputerchipsandmicrochannelnetworkhea