Page 143 - 《水资源与水工程学报》2024年第6期
P. 143
! 35 " ! 6 # & ' ( ) & * + , - Vol.35No.6
2024 $ 12 % JournalofWaterResources&WaterEngineering Dec.,2024
DOI:10.11705/j.issn.1672-643X.2024.06.14
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3IJKL:TV663;TV31 MNOPQ:A MRSL:1672643X(2024)06013910
Dynamiccharacteristicsoffluid-structurecouplingofemergency
gate -gateslotinpumpedstoragepowerstations
2
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GAOZhiwei,FENGHuihui,XIELisheng,DIAONan,DINGPengcheng
(1.CollegeofMechanicalandElectricalEngineering,HohaiUniversity,Changzhou213022,China;
2.ShanghaiInvestigation,DesignandResearchInstituteCo.,Ltd.,Shanghai200434,China)
Abstract:Inpracticalengineering,tailwateremergencysluicegateiscloselylinkedtosluicegateslots
inapumpedstoragepowerstation.Undertheactionofwaterpulsation ,theyinteractwitheachotherand
formanewsystem.Inordertostudytheinfluencingmechanismofsluicegateslotsontailwateremergen
cysluicegate ,thefluid-structurecouplingnumericalsimulationofasluicegateinalargepumpedstor
agepowerstationwascarriedoutbyANSYSWorkbench.Twokindsofwaterflowfieldmodelswerecon
structedwiththeconsiderationofthepresenceorabsenceofgateslots.Subsequently ,thechangesof
physicalcharacteristicssuchasflowfieldpressure ,velocity,stressanddisplacementofgatecomponents
inthefluid-structurecouplingmodelwithandwithoutgateslotswerestudiedundereightdifferentgate
openingdegrees (10% -80%).Theresultsshowthattheequivalentstressanddisplacementofthegate
decreasegraduallywiththeincreaseofsluicegateopening.Inaddition ,evenaslightchangeinopening
cancastasignificantimpactonthestressanddeformationparametersofthegate.Theexistenceofthe
gateslotsignificantlyaffectsthepressureandvelocitydistributionintheflowfield ,resultinginthedistri
butionchangeofthelowpressurearea ,theincreaseofflowvelocityandtheaggravationoffluidstratifica
tion.Whenconsideringthesluicegateslotmodel ,themaximumdisplacementandstressofeachcompo
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