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1、ChemicalEngineeringScience71(2012)300–309ContentslistsavailableatSciVerseScienceDirectChemicalEngineeringSciencejournalhomepage:www.elsevier.com/locate/cesAnalysisofflowthroughanorificemeter:CFDsimulationa,c1,a,b,ncccManishS.Shah,JyeshtharajB.Joshi,AvtarS.Kalsi,C.S.R.Prasad,DayaS.ShuklaaDepartmentofCh
2、emicalEngineering,InstituteofChemicalTechnology,Matunga,Mumbai400019,IndiabHomiBhabhaNationalInstitute,Trombay,Mumbai400094,IndiacChemicalTechnologyDivision,BhabhaAtomicResearchCenter,Trombay,Mumbai400085,IndiaarticleinfoabstractArticlehistory:Orificemetersarethemostcommoninstrumentsusedforfluidflowmea
3、surementbecauseofitsReceived29July2011ruggedness,simplemechanicalconstructionandotherknownadvantages.OrificecoefficientsareReceivedinrevisedformempiricalbecauseofdifficultyinaccuratelypredictingtheeffectsofgeometricalcomplicacyandflow11November2011separationfromthewallontheflow.Inthepresentpaper,Computat
4、ionalFluidDynamics(CFD)Accepted14November2011simulationhasbeenusedtopredicttheorificeflowwithbetteraccuracy.CFDsimulationshavebeenAvailableonline1December2011performedusingOpenFOAM-1.6solverandvalidatedwiththepublishedexperimentaldataofNailKeywords:(1991)andMorrisonetal.(1993).CFDsimulationshavebeenva
5、lidatedwithpressuredropandenergyChemicalprocessesbalanceofourexperimentaldataofwaterasfluid.TheoutcomesoftheCFDsimulationsintermsofInstrumentationprofilesofvelocity,pressure,etc.arediscussedindetail.AnewschemehasbeenproposedtotrackSimulationvena-contractawiththehelpofCFDandwithasuitableprovisionintheh
6、ardwareoforificemeter.TheTurbulencenewschememaintainstheexistingadvantagesoforificemetersandprovidesbetteraccuracyandOpenfoamVena-contractasensitivity.&2011ElsevierLtd.Allrightsreserved.1.Introductionorificemeterissuppliedwithdischargecoefficient(CD)andinstallationprocedure.Thedischargecoefficientisdefine
7、dasItisveryimportanttohaveinformationonflowratesoftheratioofactualflowtothetheoreticalflow.Itisobtainedvariouschemicalprocessstreamswithadequateaccuracyinthefromexperimentalmeasurementsafterregression,wh
