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1、SAND76-0131UnlimitedReleaseUC-60●WindTunnelPerformanceDataforTWO-andThree-BucketSavoniusRotorsBenF.Blackwell,RobertE.Sheldahl,LouisV.FeltzPreparedbySand,aLaboratories,Albuquerque,NewMexico87115arxiLivermore,California94550fortheUnKedStatesEnergyResearchandDevelopmentAdministrationunderCon
2、tractAT(29–1)-789PrintedJuly1977*....SF2900Q(8-81)-,-.●☛.IssuedbySandiaLaboratories,operatedfortheUnitedStatesEnergyResearch&DevelopmentAdministrationbySandiaCorporation.NOTICEThisreportwaspreparedasanaccountofworksponsoredbytheUnitedStatesGovernment.NeithertheUnitedStatesnortheUnitedStat
3、esEnergyResearch&DevelopmentAdrninis.tration,noranyoftheiremployees,noranyoftheircon-tractors,subcontractors,ortheiremployees,makesanywarranty,expressorimplied,orassumesanylegalliabilityorresponsibilityfortheaccuracy,completenessorusefulnessofanyinformation,apparatus,productorprocessdiscl
4、osed,orrepresentsthatitsusewouldnotinfringeprivatrlyownedrights.Printedinthe(_lnitedStatesofAmericaAvailablefromNationalTechnicalInformationServiceU.S.DepartmentofCommerce5285PortRoyalRoadSpringfield,VA22161Price:PrintedCopy$5.50;Microfiche$3.00..s.2..SAND76-0131DistributionUnlimitedRelea
5、seCategoryUC-60PrintedJuly1977WINDTUNNELPERFORMANCEDATAFORTWO-ANDTHREE-BUCKETSAVONIUSROTORSBenF.BlackwellRobertE.SheldahlAerothermodynamicsDivision,1333LouisV.FeltzMechanicalDesignDivision,1324SandiaLaboratoriesAlbuquerque,NM87115ABSTRACTFifteenconfigurationsofaSavoniusrotorwindturbinewer
6、etestedintheVoughtCorporationSystemsDivision4.9-x6.l-mLowSpeedWindTunneltodetermineaerodynamicperformance.TherangeofvaluesofthevariedparameterswasNumberofBuckets2and3NominalFreestreamVelocity7and14m/sReynoldsNumberperMetre4.32x105and8.67x105RotorHeightlandl.5mRotorDiameter(nominal)lmBucke
7、tOverlapO.O-O.lmThemeasuredtestvariablesweretorque,rotationalspeed,andtunnelconditions.Thedatapresentedareintheformofpowerandtorquecoefficientsasafunctionofspeedratio(orangularpositionforstaticstartingtorques).ItisconcludedthatincreasingReynoldsnumberand/oraspectrat