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ID:40352224
大小:4.94 MB
页数:42页
时间:2019-07-31
《DNS of the evaporation with OpenFOAM analysis of the interactions between droplets》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、1stWorkshopon”SingleandTwo-PhaseFlowSimulationswithOpenFOAM:ModellingandNumericalissues”April7-8,2009DNSoftheevaporationwithOpenFOAM:analysisoftheinteractionsbetweendropletsDr.–Ing.BrunoFrackowiakTECHNISCHEUNIVERSITÄTDARMSTADTPresentationsummary•Introduction•Previoussimulationsusi
2、ngFluent•ComputationoftheexternalflowwithOpenFOAM•Resultswiththeisolateddropletcase•Resultswiththemonodispersestream•ConclusionetperspectivesTECHNISCHEUNIVERSITÄT1stWorkshopon”SingleandTwo-PhaseFlowSimulationswithOpenFOAM:ModellingandNumericalissues”April7-8,2009DARMSTADTPresentat
3、ionsummary•Introduction•PrevioussimulationsusingFluent•ComputationoftheexternalflowwithOpenFOAM•Resultswiththeisolateddropletcase•Resultswiththemonodispersestream•ConclusionetperspectivesTECHNISCHEUNIVERSITÄT1stWorkshopon”SingleandTwo-PhaseFlowSimulationswithOpenFOAM:ModellingandN
4、umericalissues”April7-8,2009DARMSTADTIndustrialcontextContinuousphase:Flowinacomplexgeometry,vaportransport,combustionCombustionchamberperformancesimprovementDispersedphase:Dropletsevaporation,effectPollutantsemissiononcontinuousphase,combustiondecreaseCompleteDNSimpossible!!!TE
5、CHNISCHEUNIVERSITÄT1stWorkshopon”SingleandTwo-PhaseFlowSimulationswithOpenFOAM:ModellingandNumericalissues”April7-8,2009DARMSTADTTwophasesflowCFDNumericaldroplettrajectoryV.gBassetBoussinesqOseenequationmimplyingdragcoefficientCdQltotaldVg12()m=πDgρCdV−VgV−Vg+mgdt8Numericald
6、ropletNumericaldropletevaporationsourcetermsofheatfluxQltotalandvaporflowratemɺinthegasphaseCombustionchamber:EvaporationmodelsfortheliquidSpraymodelledbyphasedropletparcelsCorrectionstotakeintoaccounttheinteractionsbetweendropletsTECHNISCHEUNIVERSITÄT1stWorkshopon”SingleandTwo-
7、PhaseFlowSimulationswithOpenFOAM:ModellingandNumericalissues”April7-8,2009DARMSTADTAdoptedSimpleconfigurationadaptedtotheevaporationphenomenonstrategyNon-intrusiveopticalCompletenumericalmeasurementssimulationFrangesd’AiryStructuresondulatoiresComparisonoftheresultsParametricalstu
8、diesCorrelationsfortheSimplifiede
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