FLUENT流化床模擬實例

1、UsingtheEulerianMultiphaseModelwithSpeciesTransportUsingtheEulerianMultiphaseModelwithSpeciesTransport cFluentInc.October30,2006UsingtheEulerianMultiphaseModelwithSpeciesTransportUsingtheEulerianMultiphaseModelwithSpeciesTransport2cFluentInc.October30,20062cFluentInc.October30,2006Viewthephasemotion

2、bydisplayingplotsofvelocityvectorsforthegasandsolidphases.Display-Vectors.SelectVelocityfromtheVectorsofdrop-downlistandphase-1fromthePhasedrop-downlists.SelectVelocity.andVelocityMagnitudefromtheColorbydrop-downlistandphase-1fromthePhasedrop-downlist.Enter5forScaleand2forSkiptoimprovevisualizationo

3、fthevelocityvectors.ClickDisplay.Thephase-1velocityvectorsareshowninFigure5.Selectphase-2fromthePhasedrop-downlisttoplotthephase-2velocityvectors.Thephase-2velocityvectorsareshowninFigure6.i.za*+ooui*+m口卿MH9.22e-0iS.5Q01r.QQun7J7frO10.70*01e.-i5-ii:a.saeoi4.Q2-I1J.-304-01J勺rm_CHJ2.4fltC1I1j854uI1I1:

4、23e-01&左woz5.74e-O4phaae-1-velocityColoredByvelotltyMagniHide(phaae-1)mJsiTimelDDOOe+ai)FLUENT6.3(id,dp,pbns,eulerian.spe,lam,unsleadvJFigure5:VelocityVectorsforPhase-1e.i7ediI8.714-01IT.70tO16.87e-0i5.42fr01GJQfrO!5D4*014占白mI.124-013B7C1口rug6.3-1013J7LU1合自勺NH75fc01J丁EHHI7.37r-01IJ.-131-O15.30?-01臼加

5、阿白.434S.IHtOII6口4MHI6.7De-0l5.411fcO15.22e4)1ConlDursarvalumeTracnan(phae-1)iTimB=l.ddddetDl)FLUENT6.32d.dp,pbns,eulerian,spe,lam,unsleadFigure7:VolumeFractionforPhase-14.ComparethemassfractionofO3andO2atthepressureoutletofthefluidizedbed.Plot-tXYPlot.(a)DisplayanXYplotofmassfractionofO2.SelectSpeci

6、es.andMassfractionofo2fromtheYAxisFunctiondrop-downlist.RetainthedefaultselectionofDirectionVectorfromtheXAxisFunctiondrop-downlist.SelectoutletfromtheSurfacesselectionlist.Enter0forXPlotDirectionand1forYPlotDirection.ClickPlot.Similarly,displayanXYplotofmassfractionofO3byselectingMassfractionofo3fr

7、omtheYAxisFunctiondrop-downlist.ComparetheO2andO3XYplotsformassfractioninFigure8andFigure9.Figure8:XYPlotofMassFractionofO3Figure8:XYPlotofMassFractionofO3Figure9:XYPlotofMassFractionofO2SummaryThistutorialdemonstratedhowtosetupandsolveagranularmultiphaseproblemusingtheEulerianmultiphasemodelwithspeciestransportandreaction.Theprobleminvolvedthe2Dmodelingofparticlesuspensioninafluidizedbed,andpostprocessingshowedthenear-steady-statebehaviorofthesandinthefluidizedbed,undertheassumptionsmade.Suchcasesshouldbetypicallyrunforatotalof40se