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鱼雷泵喷推进器设计及水动力性能预报方法研究 Title:ResearchonDesignofTorpedoPump-JetPropulsionSystemandHydrodynamicPerformancePredictionMethod Abstract: Thispaperaimstoinvestigatethedesignandhydrodynamicperformancepredictionmethodoftorpedopump-jetpropulsionsystems.Thetorpedopump-jetpropulsionsystemplaysacriticalroleinunderwaternavigationandwarfare.Thedesignprinciplesandmethodologyofthepump-jetpropulsionsystemareexplored,alongwithananalysisofitshydrodynamicperformance.Additionally,anovelapproachforpredictingthehydrodynamicperformanceofthesystemisproposed.Theresearchconductedinthispaperprovidesinsightsandguidelinesforthedesignandoptimizationoftorpedopump-jetpropulsionsystems. 1.Introduction: Theuseoftorpedopump-jetpropulsionsystemshasbecomeincreasinglypopularinmodernunderwaterwarfareduetotheirhighmaneuverability,quietoperation,andenhancedperformance.Athoroughunderstandingofthedesignprinciplesandhydrodynamicperformanceofthesesystemsiscrucialfortheireffectivedeployment.Thispaperinvestigatesthedesignconsiderationsandhydrodynamicperformancepredictionmethodsfortorpedopump-jetpropulsionsystems. 2.DesignConsiderations: 2.1GeometricDesign: Thegeometricdesignofthetorpedopump-jetpropulsionsystemplaysapivotalroleinitsoverallperformance.Factorssuchastheshapeofthepumpnozzle,statorblades,rotorblades,andintakegeometryareconsideredindesigninganefficientsystem. 2.2HydraulicDesign: Thehydraulicdesignfocusesonoptimizingtheflowwithinthesystem.Factorssuchasbladesweep,bladearearatio,bladeloading,andoutletvelocityuniformityareevaluatedtoachieveanoptimalflowfieldandimprovepropulsionefficiency. 3.HydrodynamicPerformanceAnalysis: 3.1PropulsiveEfficiency: Thepropulsiveefficiencyisakeyparametertoassesstheperformanceofatorpedopump-jetpropulsionsystem.Variousapproaches,suchasempiricalmethods,numericalsimulations,andexperimentaltesting,canbeemployedtodeterminethepropulsiveefficiency. 3.2CavitationEvaluation: Cavitationisaphenomenonthatoccurswhenpressuredropsbelowthevaporpressure,resultingintheformationandcollapseofvaporb