2001 performance prediction of a generic triple spool low bypass turbofan

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1、(c)2001AmericanInstituteofAeronautics&AstronauticsorPublishedwithPermissionofAuthor(s)and/orAuthor(s)'SponsoringOrganization.AMAAA01-16896AIAA2001-1115PERFORMANCEPREDICTIONOFAGENERICTRIPLESPOOLLOWBYPASSTURBOFANF.B.Kauser,CaliforniaStatePolytechnicUniversityPomona,CaliforniaFrankW.Burcham,

2、AS&MInc.,Edwards,California39thAIAAAerospaceSciencesMeeting&Exhibit8-11January2001/Reno,NVForpermissiontocopyorrepublish,contacttheAmericanInstituteofAeronauticsandAstronautics1801AlexanderBellDrive,Suite500,Reston,VA20191(c)2001AmericanInstituteofAeronautics&AstronauticsorPublishedwithPe

3、rmissionofAuthor(s)and/orAuthor(s)'SponsoringOrganization.maneuvers.ThevaryinglowpressurecompressorM.PlencerandChristopherA.SnyderofNASALewisoutput,therefore,providesthehighpressureratioResearchCenterisusedtoconducttheoff-designcompressorwithbestentryconditionswithintheanalysis.Thiscodeem

4、ploysaveryflexiblemethodlimitsofitsdesign.ofinputinwhichasetofstandardcomponentsareconnectedattheexecutiontimetosimulatealmostAtriplespoollayoutoffersevengreaterflexibility.anyturbineengineconfiguration.TheNNEP89However,onlyafewengineshavingtriplespoollayoutcomputercodeiscapableofscalingt

5、hecompressorhavebeenbuiltaroundtheworld.Oneofthefamousandturbinemapstomatchthedesignpointpressureandhighlysuccessfulcommercialturbofanenginesratio,correctedmassflowrate,andefficiencyofthewithtriplespoollayoutistheRollsRoyceRB-211usedenginebeingmodeled.ThethermodynamicroutineonBoeing757.R/

6、RTrent800seriesforBoeing777usedinthiscodeispresetformixturesofairandhasRB-211core.TheseenginesfallinthehighbypassJP4fuel.Achemicalequilibriummodelisalsoratiocategoryandemploynoafterburningforobviousincorporatedasanoptionwhenchemicalreason.Anotherexampleofatriplespoolturbofanisdissociation

7、occurs.FurtherdescriptionofthetheSovietnK-321turbofanenginefourofwhichpowerNNEP89Codefollowsinthelaterpartofthepaper.thelongrangestrategicNATObomberhavingthecodename"Blackjack".GENERICENGINEDESIGNPARAMETERSNodoubtatriplespoolenginelayoutoffersbetterANDPERFORMANCEDAT