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1、外文资料翻译第13页CFDsimulationandoptimizationoftheventilationforsubwayside-platformFeng-DongYuan*,Shi-JunYouAbstractToobtainthevelocityandtemperaturefieldofsubwaystationandtheoptimizedventilationmodeofsubwayside-platformstation,thispapertakestheevaluationan
2、doptimizationoftheventilationforsubwayside-platformstationasmainline,buildsthreedimensionalmodelsoforiginalandoptimizationdesignoftheexistedandrebuiltstation.Andusingthetwo-equationturbulencemodelasitsphysicsmodel,thethesismakescomputationalfluiddyna
3、mics(CFD)simulationtosubwayside-platformstationwiththeboundaryconditionscollectedforsimulationcomputationthroughfieldmeasurement.Itisfoundthatthetwo-equationturbulencemodelcanbeusedtopredictvelocityfieldandtemperaturefieldatthestationundersomereasona
4、blepresumptionsintheinvestigationandstudy.Atlast,anoptimizationventilationmodeofsubwayside-platformstationwasputforward.1.IntroductionComputationalfluiddynamics(CFD)softwareiscommonlyusedtosimulatefluidflows,particularlyincomplexenvironments(ChowandL
5、i,1999;Zhangetal.,2006;MourehandFlick,2003).CFDiscapableofsimulatingawidevarietyoffluidproblems(GanandRiffat,2004;Somarathneetal.,2005;Papakonstantinouetal.,2000;KarimipanahandAwbi,2002).CFDmodelscanberealisticallymodeledwithoutinvestinginmorecostlye
6、xperimentalmethod(Bettaetal.,2004;Alloccaetal.,2003;MourehandFlick,2003).SoCFDisnowapopulardesigntoolforengineersfromdifferentdisciplinesforpursuinganoptimumdesignduetothehighcost,complexity,andlimitedinformationobtainedfromexperimentalmethods(LiandC
7、how,2003;Vardyetal.,2003;KatolidoyandJicha,2003).Tunnelventilationsystemdesigncanbedevelopedindepthfromthepredictionsofvariousparameters,suchasvehicleemissiondispersion,visibility,airvelocity,etc.(LiandChow,2003;Yauetal.,2003;Gehrkeetal.,2003).外文资料翻译
8、第13页EarlierCFDsimulationsoftunnelventilationsystemmainlyfocusonemergencysituationasfirecondition(Modic,2003;Carveletal.,2001;Casale,2003).Manyscientistsandresearchworkers(WatersonandLavedrine,2003;SiglandRieker,2000;Gaoetal.,2004;Tajaduraetal.,2006)h
