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齿边浮阀塔内气相流场的数值模拟和分析(英文).docx

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齿边浮阀塔内气相流场的数值模拟和分析(英文) NumericalSimulationandAnalysisofGasFlowFieldinPorous-BorderFloatValveTower Introduction: Asanimportantequipmentforseparatingandpurifyinggases,theporous-borderfloatvalvetowerhasbeenwidelyusedinthefieldofpetrochemicalengineering.Theperformanceofthetoweriscloselyrelatedtothegasflowfieldinside.Inordertobetterunderstandtheflowcharacteristicsandoptimizethedesignofthetower,numericalsimulationandanalysisofthegasflowfieldintheporous-borderfloatvalvetowerarenecessary. Methodology: Inthisstudy,Fluentsoftwarewasusedtosimulatethegasflowfieldintheporous-borderfloatvalvetower.Thesimulationmodelwasestablishedaccordingtotheactualstructureofthetower,andthestandardk-εturbulencemodelwasselectedforthesimulation.Theboundaryconditionsforthesimulationweresetbasedontheactualoperatingconditionsofthetower.Theflowcharacteristicsandpressuredistributioninsidethetowerwereanalyzedandcomparedwiththeexperimentalresultstoverifythesimulationmethod. Results: Thesimulationresultsshowthatthegasflowinsidetheporous-borderfloatvalvetoweriscomplexandaffectedbymanyfactorssuchastheflowrate,gasproperties,andtowerstructure.Thegasflowvelocityandpressuredistributioninsidethetowerarebothaffectedbythedistributionoftheporousborderandtheflowdirection.Thepressuredropinthetowergraduallyincreasesfromthebottomtothetop,andtheflowvelocityofthegasishighernearthecentralcolumnthannearthewallsofthetower. Discussion: Thesimulationresultsshowgoodagreementwiththeexperimentalresults,whichindicatesthatthesimulationmethodandboundaryconditionsusedinthisstudyarereliableandaccurateforpredictingthegasflowfieldintheporous-borderfloatvalvetower.Thestudyalsoshowsthatthedesignoftheporousborderandthedistributionstructureinsidethetowerhaveasignificantimpactonthegasflowfield.Areasonabledesignofthesefactorscanimprovetheseparationandpurificationefficiencyofthetower. Conclusion: Thenumericalsimulationandanalysisofthegasflowfieldintheporous-borderfloatvalvetowerprovideacomprehensiveunderstandingoftheflowcharacteristicsandpres