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基于正交试验及CFD的液环真空泵叶轮优化设计.docx

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基于正交试验及CFD的液环真空泵叶轮优化设计 Title:OptimizationDesignofImpellerforLiquidRingVacuumPumpBasedonOrthogonalExperimentandCFD Abstract: Theliquidringvacuumpumpisacrucialcomponentinvariousindustrialapplications,specificallyinthefieldofvacuumtechnology.Theefficiencyandperformanceoftheliquidringvacuumpumphighlydependonthedesignofitsimpeller.Inthisstudy,weproposeanoptimizationdesignoftheimpellerforaliquidringvacuumpumpusingorthogonalexperimentandcomputationalfluiddynamics(CFD).Thegoalistoimprovetheefficiencyandperformanceofthepumpbyoptimizingtheimpellerdesign. 1.Introduction: Theliquidringvacuumpumputilizesarotatingimpellercoveredwithliquidtocreateavacuumbycreatingacentrifugalforce.Theimpellerdesignplaysacriticalroleindeterminingtheefficiencyandperformanceofthepump.Inrecentyears,theapplicationoforthogonalexperimentandCFDtechnologyinoptimizingtheimpellerdesignhasbecomemoreprevalentduetotheirefficiencyandaccuracy. 2.Methodology: 2.1OrthogonalExperiment: Orthogonalexperimentdesignisastatisticalmethodusedtoefficientlyexploretheparametersandtheirlevelsthatsignificantlyinfluencetheperformanceofthedesign.Bysettingupalimitednumberofexperimentsaccordingtotheorthogonalexperimenttable,thismethodhelpsidentifytheinfluenceofeachfactoranddeterminetheoptimalcombinationoflevels. 2.2ComputationalFluidDynamics(CFD): CFDisanumericalsimulationtechniqueusedtoanalyzeandsolvefluidflowandheattransferproblems.Itisespeciallybeneficialinoptimizingtheimpellerdesignofliquidringvacuumpumpsasitcanprovideinsightsintothefluiddynamics,pressuredistribution,andperformanceoftheimpeller. 3.ExperimentalDesign: Inthisstudy,anorthogonalexperimentdesignisemployedtoinvestigatetheinfluenceofvariousfactorsontheperformanceoftheliquidringvacuumpumpimpeller.Thefactorsincludethenumberofblades,bladeskewangle,bladeshape,andbladeheight.Byselectingappropriatelevelsforeachfactor,asetofexperimentsisconducted,andtheperformanceparametersofeachimpellerdesignarerecorded. 4.CFDSimulations: Afterconductingtheorthogonalexperiment,thenumericals