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基于混合迭代法的二维水翼空泡性能分析(英文).docx

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基于混合迭代法的二维水翼空泡性能分析(英文) Abstract： Inthispaper,ahybriditerativemethodisusedtoanalyzetheperformanceofatwo-dimensionalhydrofoilwithcavitation.ThenumericalsimulationisbasedonaNavier-Stokesequation-basedmodel,combinedwiththeRayleigh-Plessetequationandthenon-linearmodifiedSchnerr-Sauercavitationmodel.Theanalysisresultsshowthatthethicknessofthehydrofoil,theangleofincidence,andthecavitationnumberallhaveasignificantimpactontheperformanceofthehydrofoilwithcavitation.Inaddition,theresultsshowthatthehybriditerativemethodisaccurateandeffectiveinanalyzingthehydrofoilwithcavitation. Introduction： Two-dimensionalhydrofoilswithcavitationarewidelyusedinvariousfields,suchasmarineengineering,aviation,andaerospace.Thecavitationphenomenonthatoccursonthesurfaceofthehydrofoilcansignificantlyaffecttheperformanceofthehydrofoil,leadingtoincreaseddraganddecreasedlift.Therefore,itisessentialtoanalyzetheflowfieldcharacteristicsandcavitationphenomenonofthehydrofoilwithcavitation. Inrecentyears,manynumericalmethodshavebeenusedtostudytheperformanceofhydrofoilswithcavitation.However,mostofthesemethodshavelimitationsintermsofaccuracyandcomputationalefficiency.Therefore,inthispaper,ahybriditerativemethodisproposedtoanalyzetheperformanceoftwo-dimensionalhydrofoilswithcavitation. Methodology： ThenumericalsimulationofthehydrofoilwithcavitationisbasedonaNavier-Stokesequation-basedmodel,combinedwiththeRayleigh-Plessetequationandthenon-linearmodifiedSchnerr-Sauercavitationmodel.Thehybriditerativemethodisusedtosolvetheequationsystem,includingtheNavier-Stokesequation,theRayleigh-Plessetequation,andthenon-linearmodifiedSchnerr-Sauercavitationmodel. Thehybriditerativemethodincludestwosteps:theNavier-Stokesequation-basedmodelisfirstsolvedusingthefinitevolumemethod,andthen,theRayleigh-Plessetequationandthenon-linearmodifiedSchnerr-SauercavitationmodelaresolvedusingtheNewton-Raphsonmethod. ResultsandDiscussion： Theanalysisresultsshowthatthethicknessofthehydrofoil,theangleofincidence,andthecavitationnumberallhaveasi