Title of article
Thecaseofanoscillatingmanometerwithvariabledensityanddissipation:experimentalandnumericalstudyOriginalResearchArticle
Author/Authors
H.Suresan، نويسنده , , S.Jayanti، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
15
From page
59
To page
73
Abstract
Withtheincreasinguseofcomputationalfluiddynamics(CFD)-basedsimulationsintheassessmentofthermalhydraulicbehaviourofnuclearreactors,thereisaneedtobenchmarkthepredictionsofCFDcodes.ThecaseofafrictionlessU-tubemanometer[Ransom,V.,1992.Oscillatingmanometer.In:Hewitt,G.F.,DelhayeJ.M.,ZuberN.(Eds.),MultiphaseScienceandTechnology,vol.6.Hemisphere,NewYork,USA,p.591]hasbeenpreviouslyusedasatestcasetobenchmarkthedispersiveanddissipativecharacteristicsofanumericalprediction.Inthepresentpaper,thiscaseisextendedtocovertwonewaspectsthatareoftenfoundinnuclearreactorsystems:variabledensityanddissipation.Throughatheoreticalmodel,itisshownthatthedynamicbehaviourofthenewsystemismorecomplicatedthanthatofaconstant-densityfrictionlessU-tubemanometer.Experimentsofthetestcasehavebeencarriedouttosubstantiatetheessentialfeaturesoftheresponse.CFDsimulationsofthesystemshowbothdissipativeanddispersiveerrorscomparedtothetheoreticalresult.Theresultscanthereforeserveasausefulbenchmarkforcomputercodesusedtostudythethermalhydraulicsofnuclearreactorsystems,especiallyinevaluatingtheroleofnumericaldampinginsystemsinwhichphysicaldampingexistsinherently.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894699
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