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1、外文资料翻译第14页CFDsimulationandoptimizationoftheventilationforsubwayside-platformFeng-DongYuan*,Shi-JunYouAbstractToobtainthevelocityandtemperaturefieldofsubwaystationandtheoptimizedventilationmodeofsubwayside-platformstation,thispapertakestheevaluationandoptimizationof
2、theventilationforsubwayside-platformstationasmainline,buildsthreedimensionalmodelsoforiginalandoptimizationdesignoftheexistedandrebuiltstation.Andusingthetwo-equationturbulencemodelasitsphysicsmodel,thethesismakescomputationalfluiddynamics(CFD)simulationtosubwaysid
3、e-platformstationwiththeboundaryconditionscollectedforsimulationcomputationthroughfieldmeasurement.Itisfoundthatthetwo-equationturbulencemodelcanbeusedtopredictvelocityfieldandtemperaturefieldatthestationundersomereasonablepresumptionsintheinvestigationandstudy.Atl
4、ast,anoptimizationventilationmodeofsubwayside-platformstationwasputforward.1.IntroductionComputationalfluiddynamics(CFD)softwareiscommonlyusedtosimulatefluidflows,particularlyincomplexenvironments(ChowandLi,1999;Zhangetal.,2006;MourehandFlick,2003).CFDiscapableofsi
5、mulatingawidevarietyoffluidproblems(GanandRiffat,2004;Somarathneetal.,2005;Papakonstantinouetal.,2000;KarimipanahandAwbi,2002).CFDmodelscanberealisticallymodeledwithoutinvestinginmorecostlyexperimentalmethod(Bettaetal.,2004;Alloccaetal.,2003;MourehandFlick,2003).So
6、CFDisnowapopulardesigntoolforengineersfromdifferentdisciplines外文资料翻译第14页forpursuinganoptimumdesignduetothehighcost,complexity,andlimitedinformationobtainedfromexperimentalmethods(LiandChow,2003;Vardyetal.,2003;KatolidoyandJicha,2003).Tunnelventilationsystemdesignca
7、nbedevelopedindepthfromthepredictionsofvariousparameters,suchasvehicleemissiondispersion,visibility,airvelocity,etc.(LiandChow,2003;Yauetal.,2003;Gehrkeetal.,2003).EarlierCFDsimulationsoftunnelventilationsystemmainlyfocusonemergencysituationasfirecondition(Modic,20
8、03;Carveletal.,2001;Casale,2003).Manyscientistsandresearchworkers(WatersonandLavedrine,2003;SiglandRieker,2000;Gaoetal.,2004;Tajaduraetal.,2006)h
