帶有通風(fēng)豎井的高速鐵路隧道壓力波數(shù)值模擬研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文帶有通風(fēng)豎井的高速鐵路隧道壓力波數(shù)值模擬研究姓名：金紀(jì)峰申請學(xué)位級別：碩士專業(yè)：供熱、通風(fēng)及空調(diào)工程指導(dǎo)教師：趙海恒1999AStudyonNumericalSimulationofHigh_SpeedTrainforCalculatingPressureTransientinTunnelswithAirshaflsAbstractAstudyonnumericalsimulationofhighspeedtra

2、inpassingthrou釃atmmelwithairshaffsispresented，whichispartofresearchprojectsponsoredbytheDepartmentofScienceandTechnologyoftheRailwayMinistryTherearereportsontheuseofairshaftsforthealleviationofpressuretransientsinrailway

3、tunnelsPapersconcerningonlytheexperimentalandcomputationalresultswerepublishedwhilereportson鑫etalsofthecomputationalmethodandboundaryconditionsforalrshaflsarenotpresentedinpublicPwsicalmodelbasedonone—dimensional。unstead

4、ycompressiblenon—homentropicflowmodelandnumericaimethodaredevelopedforthefirsttimetopredictthepressuretransientgeneratedbyahighspeedtrainpassingthroughatunnelwithairshaflsThemo如lisrigorousfromthestandpointof也eThemodynarn

5、icsandFluidMechanicsAwholesetofboundaryconditionsforairshaftsareproposedindetailThenumericalcomputerprogramsaredevelopedwhicharebasedonthemethodofcharacteri蛙ics。確ecalculatedresultsnthispapercoincideverywellwi氌experimenta

6、lmeasurements，whichindicatesthepredictionmethodisaccurateandworkable瓢epressuretransientandairvelocityhistoriesintunnelsandairshafisaresimulatedwhenahighspeedtrainpassesthroughatunnelwithtwoairshaftsTheresultsindicatethat

7、airshaflscarlimposeallintenseimpactonthemagnitudesofthepressuretransientsItistheoreticallyandpracticallysignificanttothechoiceoftunnelparametersandattenuationofairpressttretransientswithairshafls。Keywords：tunnel，highspee