Title of article
CoolantchannelmoduleCCM:Anuniversallyapplicablethermal-hydraulicdrift-fluxbasedmixture-fluid1DmodelandcodeOriginalResearchArticle
Author/Authors
AloisHoeld، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
16
From page
1952
To page
1967
Abstract
Acompleteanddetaileddescriptionofthetheoreticalbackgroundofan‘(1D)thermal-hydraulicdrift-fluxbasedmixture-fluid’coolantchannelmodelanditsresultingmoduleCCMwillbepresented.Theobjectiveofthismoduleistosimulateasuniversallyaspossiblethesteadystateandtransientbehaviourofthekeycharacteristicparametersofasingle-ortwo-phasefluidflowingwithinanytypeofheatedornon-heatedcoolantchannel.Duetothepossibilitythatdifferentflowregimescanappearalonganychannel,sucha‘basic(BC)’1Dchannelisassumedtobesubdividedintoanumberofcorrespondingsub-channels(SC-s).EachSCcanbelongtoonlytwotypesofflowregime,anSCwithjustasingle-phasefluid,containingexclusivelyeithersub-cooledwaterorsuperheatedsteam,oranSCwithatwo-phasemixtureflow.AfteranappropriatenodalisationofsuchaBC(andthereforealsoitsSC-s)a’modifiedfinitevolumemethod’hasbeenappliedforthespatialdiscretisationofthepartialdifferentialequations(PDE-s)whichrepresentthebasicconservationequationsofthermal-hydraulics.SpecialattentionhadtobegiventothepossibilityofvariableSCentranceoroutletpositions(whichdescribeboilingboundariesormixturelevels)andthusthefactthatanSCcanevendisappearorbecreatedanew.TheprocedureyieldsforeachSCtype(andthustheentireBC),asetofnon-linearordinary1storderdifferentialequations(ODE-s).
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941374
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