潔凈室氣固兩相流的數(shù)值模擬.pdf

1、中國農(nóng)業(yè)大學碩士學位論文潔凈室氣固兩相流的數(shù)值模擬姓名：李云廣申請學位級別：碩士專業(yè)：農(nóng)業(yè)工程指導教師：南國良20070501Abstract111i5paperontheCFDmethodsimulatesandanalysesthetemperaturehumidityveloeityandpolltaantconcentrationoftheofairflowofthecleanroomThrotIghsimulationthea

2、irflowdistributionisestablishedtoformaconformablemissionary’SoperationandtosatisfytheenvironmentoftheelearlroomAlsothroughoptimizationdesign，theparticledistributionandcharacteristicisestablishedtotakethecontamiuationofff

3、arthestintheorytherebyensuretheoptimaiairenvironment，ThecharaeteristicoftheparticlesflowanddistributionareresearchedandanalyzedMixmremodelandDiscretephasemodelareusedtosimulateandanalyzethepollutantmovementtrackandtherel

4、iabilityofthesimulationWaScertificatedwiththeexperimentsthemainconclusionsarelistedasfolllows：Whenthegranulediameterislessthan101amthefluxionconfigurationoftheparticlearesimilartocontinuumliquidsuch越gasanddifferentfromco

5、ntinuumliquidinsomeaspectssuchasvelocityequationsWhenthegranulediameterismorethan1Ownandalsolessthan50ttrn，thefluxionconfigurationofparticleareviewedasthemovementofdiscreteparticleWhenthegranulediameterismorethan10OIlfII

6、，thedepositiontsthedominanteffecttoflowOntheSnmetime，theparticleconcentrationisalsothefactoroffluxionconfiguralionTheeffectoftheairchangerateperhourfACH)oncontaminationdiffusionairflowfieldisstudiedandanalyzedinthecleanr

7、oomoftheventilationsystem雒thesametimeathreedimensionalCFDmodelisestablishedandcalculatedtoconfirmthegoverningequations，theturbulenceequationsdiscretephasemodelandboundaryconditionsAccordingtosimulationandcontrastitistheb

8、estconditionofCREincleanroomwhenairchangerateperhouris55ContinuingtoaugmentACH，thereisnoobviousimprovementItwastestifiedthatthissimulationWaSausefultooltoselectandoptimizetheventilationdeviceincigallroomKeyWords：Numerica