大空间空调数值模拟边界条件研究

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1、西南交通大学硕士学位论文大空间空调数值模拟边界条件研究姓名：张镜清申请学位级别：硕士专业：供热、供燃气、通风及空调工程指导教师：雷波20060501西南交通大学硕士研究生学位论文第1I页AbstractWi血thedeVelOpmentOfcomputatiOnalfluiddynaInicsandsonwareandhardwareofthecomputer'CFD，whichisproVidedwimcomputingaⅡdvisual血nctioIls，makesitpOssibleforustoachieve血egoalofthe皿alcomfort，techn

2、iques，andenergyco璐eⅣation．Tbensurcthecredibilityofsinlulationrc8ultofCFDthatiswidelyappliedtoHVAC&R，itisimportanttoeⅡsurethecorrec恤essof廿lema血ematical姐dphysicalmodel，me印propriatenessofthe嘶ddingdiVision，andmeprecisenessofthecalculating．Also，itisessentialtoIogicallydescribetlleboundarycond

3、ition．Themesis，basedontheairconditioIlingdesignina1argespace。say't11ePassengerStalldRoomofarailwaystation，studiesthe3Dnumericalsimulationofthes订atifiedaircon(1itioningoftheP船sengerStandRoom，andthetemperaturefieldandvelocityfieldofthewaitingroombyusingtheSTAR—CDcomputationalnlliddynamicss

4、oftware．RNG缸￡turbulentmOdelisusedasthecomputingmodel；FiniteVolumeme山odis1lsedtodiscretizethecomputedareawithupwinddifferencingschemeputintouse；whileSIMPLEisadOptedtocoupletlleVelocityandpressure．This也esisattachesimportancetotheallalysisoftheextentofmeinletboundarycoⅡdition，boundarycorldi

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6、meiIlletn哪ericalmodel也atc蛆describeorbicularspoutillletbouIldaryconditionmOreaccurately．AsforthewaUtemperaturebOllIldaryconditionoft11es仃atifiedairconditioninginalargespace，itsdescriptionshouldrenectmeactual8ituationofthewalltemperaturedis打ibutionintheprocessofCFDsimulationthatisbasedonth

7、eanmysisof廿1e订endofthet啪peraturefield粕dvelocity矗elda11dtheindexationOfmemenn出℃omfbrt．AsfbrthebolmdarvcoⅡditionofmecurtainwallt锄1perature，itissimul砒edbyrespectiVelyadOptingtheidealizedadia_baticcurtainwallbOundaryconditiondescription趾ldbound盯ycondition西南交通大学硕士研究生学位论文第

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