Title of article
Amodifiedequilibriumvoiddistributionmodelapplicabletosubchannel-scalevapor–liquidcrossflowmodelforconventionalsquareandtightlatticeBWRfuelbundlesOriginalResearchArticle
Author/Authors
AkitoshiHotta، نويسنده , , HiroshiShirai، نويسنده , , MieAzuma، نويسنده , , MichioSadatomi، نويسنده , , AkimaroKawahara، نويسنده , , HisashiNinokata، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
17
From page
983
To page
999
Abstract
AsapartoftheadvancedsubchannelcodedevelopmentprojectsponsoredbyMinistryofEconomy,TradeandIndustry,Japan,thispaperdescribesimprovementoftheequilibriumvoiddistributionmodelthatisamainpartofthevapor–liquidcrossflowmodel.
Thethree-componentcrossflow(TCCF)modelisdefinedasthepresentframeworkthatseparatescontributionsofdiversion,turbulentmixingandvoiddrift.TheLaheyʹsvoidsettlingmodelisintroducedtoexpressthelattertwocomponents.Basedonthehigh-resolutionair–waterdatabaseandotherpublisheddataofsteam-watertests,generaltrendsofvapor–liquidcrossflowprocessesareexamined.Itcanbeassumedthatsubchannelvoiddistributionsaredominatedbythethreemajoreffects,i.e.thefluiddynamiceffect,thegeometricaleffectandthenarrowgapeffect.
Theequilibriumvoiddistributionmodelismodifiedtoincludetheabove-mentionedthreeeffects.Threecharacteristicparametersareassignedforeachofthethreeeffectsandtheyareidentifiedexperimentallyasfunctionsofthevoidfraction.Multi-dimensionallatticegeometriesareincorporatedbasedonthetwo-dimensionalflownetworkmodel.Thenetworkequationisconstructedbymappingtheequilibriumvoidbalanceproblemintotheforce-deflectionproblem.TheresultantmodelsareverifiedbasedonequilibriumvoiddistributiondataobtainedbySadatomiandKawahara.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894902
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