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1、外文资料翻译第13页CFDsimulationandoptimizationoftheventilationforsubwayside-platformFeng-DongYuan*,Shi-JunYouAbstractToobtainthevelocityandtemperaturefieldofsubwaystationandtheoptimizedventilationmodeofsubwayside-platformstation,thispapertakestheevaluationandoptimizat
2、ionoftheventilationforsubwayside-platformstationasmainline,buildsthreedimensionalmodelsoforiginalandoptimizationdesignoftheexistedandrebuiltstation.Andusingthetwo-equationturbulencemodelasitsphysicsmodel,thethesismakescomputationalfluiddynamics(CFD)simulationt
3、osubwayside-platformstationwiththeboundaryconditionscollectedforsimulationcomputationthroughfieldmeasurement.Itisfoundthatthetwo-equationturbulencemodelcanbeusedtopredictvelocityfieldandtemperaturefieldatthestationundersomereasonablepresumptionsintheinvestigat
4、ionandstudy.Atlast,anoptimizationventilationmodeofsubwayside-platformstationwasputforward.1.IntroductionComputationalfluiddynamics(CFD)softwareiscommonlyusedtosimulatefluidflows,particularlyincomplexenvironments(ChowandLi,1999;Zhangetal.,2006;MourehandFlick,20
5、03).CFDiscapableofsimulatingawidevarietyoffluidproblems(GanandRiffat,2004;Somarathneetal.,2005;Papakonstantinouetal.,2000;KarimipanahandAwbi,2002).CFDmodelscanberealisticallymodeledwithoutinvestinginmorecostlyexperimentalmethod(Bettaetal.,2004;Alloccaetal.,200
6、3;MourehandFlick,2003).SoCFDisnowapopulardesigntoolforengineersfromdifferentdisciplinesforpursuinganoptimumdesignduetothehighcost,complexity,andlimitedinformationobtainedfromexperimentalmethods(LiandChow,2003;Vardyetal.,2003;KatolidoyandJicha,2003).Tunnelventi
7、lationsystemdesigncanbedevelopedindepthfromthepredictionsofvariousparameters,suchasvehicleemissiondispersion,visibility,airvelocity,etc.(LiandChow,2003;Yauetal.,2003;Gehrkeetal.,2003).外文资料翻译第13页EarlierCFDsimulationsoftunnelventilationsystemmainlyfocusonemergen
8、cysituationasfirecondition(Modic,2003;Carveletal.,2001;Casale,2003).Manyscientistsandresearchworkers(WatersonandLavedrine,2003;SiglandRieker,2000;Gaoetal.,2004;Tajaduraetal.,2006)h