Title of article
Newalgorithmforthenumericalsimulationoftwo-phasestratifiedgas–liquidflowanditsapplicationforanalyzingtheKelvin–HelmholtzinstabilitycriterionwithrespecttowavelengtheffectOriginalResearchArticle
Author/Authors
M.R.Ansari، نويسنده , , V.Shokri، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
9
From page
2302
To page
2310
Abstract
Inthisarticle,thetransientconditionoftwo-phasestratifiedgas–liquidflowwasinvestigatedusingnumericalsimulation.Thebasisofthemethodinvolvestheone-spacedimensionaltransientsolutionofthegoverningequationsusingthetwo-fluidmodel.Inthispaper,ananalogybetweentheSIMPLEalgorithmintwo-spacedimensionalsingle-phaseflowandone-spacedimensionaltwo-phasestratifiedflowisestablishedthroughtheapplicationofaspecialalgorithmcreatedtosolvetheconservationequations.Afterthemodelingwasestablishedandjustified,wavegrowthwasexaminedintwo-phasestratifiedflowinahorizontalduct.Theresultswerethencomparedwiththeresultsofthepreviouslypublishedarticles.TheresultsshowthattheclassicalcriterionfortheKelvin–Helmholtz(K–H)instabilityisconsistentwhenthelongwavelengthwithsmallamplitudeisconsidered.Inthiscase(oftheK–Hinstabilitycriterion),thewavelengtheffectonthisinstabilityandpressurevariationonthetwophasesinterfacewasconsistentwithpriorresearchers’correlations.However,asthewavelengthsdecreased,theresultsindicatedthattheK–Hinstabilitycriterionisover-predictedandmustbemodified.Theapplicationofthepresentnumericalsimulationmethodimprovedtheresults,andtheconsistencywiththeanalyticalsolutionishigherincomparisonwithotherwell-knowncomputercodes.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
894967
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