Title of article :
Gas–liquidflowaroundanobstacleinaverticalpipeOriginalResearchArticle
Author/Authors :
Horst-MichaelPrasser، نويسنده , , MatthiasBeyer، نويسنده , , ThomasFrank، نويسنده , , SuleimanAlIssa، نويسنده , , HelmarCarl، نويسنده , , HeikoPietruske، نويسنده , , PeterSchütz، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Thispaperpresentsanoveltechniquetostudythetwo-phaseflowfieldaroundanasymmetricobstructioninaverticalpipewithanominaldiameterofDN200.Mainfeatureoftheexperimentsistheshiftingofahalf-moonshapeddiaphragmcausingtheobstructionalongtheaxisofthepipe.Inthisway,the3Dvoidfieldisscannedwithastationarywire-meshsensorthatsuppliesdatawithaspatialresolutionof3mmoverthecross-sectionandameasuringfrequencyof2.5kHz.Besidesthemeasurementoftime-averagedvoidfractionfieldsandbubble-sizedistributions,noveldataevaluationmethodsweredevelopedtoextractestimatedliquidvelocityprofilesaswellaslateralcomponentsofbubblevelocitiesfromthewire-meshsensordata.Thecombinationofvoidfractionfieldsandvelocityprofilesoffertheopportunitytoanalyseatwo-phaseflowinageometrythatownsaseriesoffeaturescharacteristicforcomplexcomponentsofpowerandchemicalplantequipment.Suchcharacteristicsaresharpedgeswithflowseparation,recirculationareas,jetformation,stagnationpointsandcurvedstream-lines.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
