Title of article
Studyonthermal-hydraulicbehaviorduringmoltenmaterialandcoolantinteractionOriginalResearchArticle
Author/Authors
YutakaAbe، نويسنده , , TetsuyaKizu، نويسنده , , TakahiroArai، نويسنده , , HidekiNariai، نويسنده , , KeikoChitose، نويسنده , , KazuyaKoyama، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
15
From page
277
To page
291
Abstract
Inacoredisruptiveaccident(CDA)ofaFastBreederReactor,thepostaccidentheatremoval(PAHR)iscrucialfortheaccidentmitigation.Themoltencorematerialshouldbesolidifiedinthesodiumcoolantinthereactorvessel.Thematerial,beingfragmentedwhilesolidificationandformingdebrisbed,willbecooledinthecoolant.
Intheexperiment,moltenmaterialjetisinjectedintowatertoexperimentallyobtainthevisualizedinformationofthefragmentationandboilingphenomenaduringPAHRinCDA.Theexperimentshowsthatthebreakupofthemoltenmaterialintofinefragmentsisobservedatthefront,sideandmiddlepartofthejetduringveryshorttimeinterval.Thedistributedparticlebehaviorofthemoltenmaterialjetisobservedwithhigh-speedvideocamera.AndthevisualdataisanalyzedwithParticleImagingVelocimetry(PIV).
Theexperimentalresultsarecomparedwiththeexistingtheories.Consequently,themarginalwavelengthonthesurfaceofawaterjetisclosetothevalueestimatedbasedontheRayleigh–Taylorinstability.Moreover,thefragmenteddropletdiameterobtainedfromtheinteractionofmoltenmaterialandwaterisclosetothevalueestimatedbasedontheKelvin–Helmholtzinstability.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894739
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