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1、AIAA2013-4510August19-22,2013,Boston,MAAIAAAtmosphericFlightMechanics(AFM)ConferenceWind-TunnelTestingofanInertialParticleSeparatorInletUsingDesignofExperiments1234Se-YoonOh,Jong-GeonLee,Sung-CheolKimandSanghoKimAgencyforDefenseDevelopment,Daejeon305-6
2、00,RepublicofKoreaWind-tunneltestswereconductedtodeterminetheoptimumbypassductareaoftheinertialparticleseparatorfortheaircraftinletduct.Whentheareaofthebypassductfortheairinletisexcessivelyincreased,theamountofthedumpedairtooverboardisincreasedtoresult
3、intheinletperformancedegradation.Inthepresentwork,varioustestsareconductedonaninertialparticleseparatorofthenacelleinletmodelwithbypassareavariations.Thetestsutilizetechniquesinvolvingdesignofexperimentsandresponsesurfacemodeling.Theeffectsofthebypassa
4、reavariationonthebypassratiooftheinertialparticleseparatorsystemandtheperformanceoftheinletsystemareinvestigated.Experimentaldesignoptimizationisthenperformedonthebasisoftwodesignfactors:thebypassareaandtheengineairflowcondition.Theexperimentalresultss
5、howthatthebypassductareatomeetthebypassratiorequirementprovidedbytheaircraftmanufacturercanbedeterminedtoyieldmaximumperformanceonthebasisoftheregressionmodel.Nomenclatureܣ=area்ܲ=totalpressuremሶ=massrateofflowM=Machnumber்ܶ=totaltemperature݃=conversi
6、onfactorR=gasconstantofairߙ=angleofattack,degψ=angleofyaw,degߛ=specificheatratio∞=freestreamconditionI.IntroductionHISstudyaimstofindawaytodeterminetheoptimumbypassareaoftheinertialparticleseparatorfortheTaircraftinlet.Thenacelleinletofmanyturbopropair
7、craftmodelsincludesananti-icinginertialparticleseparatorprovidedbytheaircraftenginemanufacturertopreventheavyparticlesfromenteringtheradialplenum1-2chambertypeengineinletutilizingtheprincipleofinertialseparation.MostinertialseparatorsystemincorporatesD
8、ownloadedbyNANJINGUNIVOFAERONAUTICSonJanuary14,2014
9、http://arc.aiaa.org
10、DOI:10.2514/6.2013-4510twomovablevanes,oneupstreamoftheengineinletandtheotherblockingthebypassduct.Forbypassoperationlikeicingcondition,theinletvaneisloweredandbypa
