GasTurb13PreliminaryDesign

PRELIMINARYENGINEDESIGNGasTurb13Copyright©GasTurbGmbHGasTurb13MainWindowForthistutorialwewilluseaTurbojetandthescopeMore…Copyright©GasTurbGmbHWeNeedSomeDataCopyright©GasTurbGmbHSelecttheenginemodelOpentheenginemodelInputDataPageTherearetwomorebuttonswiththisscopeCopyright©GasTurbGmbHClickonEditGeometryGeneralArrangementCopyright©GasTurbGmbHGeneralArrangementCopyright©GasTurbGmbHGeneralArrangementCopyright©GasTurbGmbHSelectthecomponentyouwanttodesignForeachComponenttheInputandoutputislistedinthecorrespondingTabIfyoudeselect“ShowAxis”,bypressingControlyouwillbeabletomovetheDrawingwithyourmouseinadraganddropway.Byselecting“ShowDiskMass”,themasseswillbedisplayedinthedrawingGeneralArrangementCopyright©GasTurbGmbHIfyouselect“Measure”zoomingwillbedisabledandyoucanmeasuredistancesandanglesofyourdesignInletDesignOptions(1)Copyright©GasTurbGmbHStrut/ChordHeight=0.5Strut/ChordHeight=1InputOutputInletDesignOptions(2)Copyright©GasTurbGmbHStrut/ChordHeight=0.5ConeAngle=10°Strut/ChordHeight=0.5ConeAngle=30°NumberofStruts=0ConeAngle=25°ConeLength/Radius=0.1NumberofStruts=0ConeAngle=35°ConeLength/Radius=1.3CompressorDesignOptionsCopyright©GasTurbGmbHInputOutputCompressorFlowAnnulusShapeCopyright©GasTurbGmbHInletRadiusRatioiscalculatedduringcycledesigninthisexampleAnnulusShapeDescriptor=1AnnulusShapeDescriptor=0.5AnnulusShapeDescriptor=0CompressorFlowAnnulusShapeThecompressorannulusshapecanalsobealteredinthecontrolpanel.Differentmodesareoffered:-Simple:definetheshapedescriptor-Bézier:useaBéziercurvetodefinetheshape-Sketch:useaBéziercurvetodefinetheshape.AdditionallyyoumaydefinebladegeometryforeachstageCompressorFlowAnnulusShapeIfyoudeselect“ShowAxis”,bypressingControlyouwillbeabletomovetheDrawingwithyourmouseinadraganddropway.Byselecting“ShowDiskMass”,themasseswillbedisplayedinthedrawingCompressorLengthCopyright©GasTurbGmbHAspectRatio=1.5AspectRatio=2CompressorAnnulusCopyright©GasTurbGmbHHereyoucangetadetailedoverviewofthecompressorannulusgeometryInteractiveDesignSeehowaninputquantityaffectsthedesignCopyright©GasTurbGmbHClickonSliderSelectaquantityChoosequantityfromthelistAdjustminandmaxvalueandclickOKBurnerCopyright©GasTurbGmbHThediffusorarearatioisaninputontheHPcompressorinputpageInputOutputCompressorInputBurnerShapeCopyright©GasTurbGmbHCanWidth/Length=0.4Length/InletRadius=1Exit/InletRadius=1.1CanWidth/Length=0.6Length/InletRadius=1.5Exit/InletRadius=1.3TurbineDesignCopyright©GasTurbGmbHShroudedUn-ShroudedInputOutputTurbineFlowAnnulusCopyright©GasTurbGmbHAspectRatio(Span/Chord)=1.2InnerRadius:R,exit/R,inlet=0.97InnerAnnulusSlope@Inlet=0°InnerAnnulusSlope@Exit=-10°InnerRadius:R,exit/R,inlet=0.9AspectRatio=1.5InnerAnnulusSlope@Inlet=10°+10°InnerAnnulusSlope@Exit=10°+10°TurbineExhaustChasingCopyright©GasTurbGmbHInputOutputTurbineExhaustFlowAnnulusCopyright©GasTurbGmbHConeAngle=19°CasingLength/InletRadius=1ConeLength/InletRadius=0.5ConeLength/InletRadius=1ConeAngle=30°ConeLength/InletRadius=0.95ConeLength=0ConeendsintheexhaustductConecontinuesinnozzleA6CasingouterexitradiusmovesbecauseA6isretainedA6StandardConvergentNozzlesCopyright©GasTurbGmbHTurbineExhaustConeendsinnozzleTurbineExhaustConecontinuesinnozzleInputOutputInputOutputPetalangleisinputontheNozzleCalculationpage(cycledesign)PlugNozzleCopyright©GasTurbGmbHInputOutputPowerGenerationExhaustCopyright©GasTurbGmbHInputOutputInterductCopyright©GasTurbGmbHTheinnercontouroftheflowannulusisdescribedwitha3rdorderpolynominalwithgivenslopesattheinletandtheexitoftheduct.Theoutercontourfollowsfromalinearareachangefromtheinlettotheexitoftheduct.InputOutputBypassCopyright©GasTurbGmbHInputOutputBypassShapeCopyright©GasTurbGmbHFlatPointRadius/InletRadius=1,27FlatPointRadius/InletRadius=1,37FlatPointRadius/InletRadius=1,27FlatPointPosition=40%ofLengthBypasswithStrutsCopyright©GasTurbGmbH•Nozzlepositionismeasuredrelativetoinnerbypasslength(Station13→Station5)•Strutpositionismeasuredrelativetoouterbypasslength(Station13→Station16)OuterBypassLengthInnerBypassLengthInputOutputDiskNomenclatureCopyright©GasTurbGmbHWebdiskHyperbolicdiskDiskDesignDataCopyright©GasTurbGmbHToaccessthediskdesignselectanycomponentthatincludesdisksClickon“Disk”toperformdiskcalculationsDiskDesignDataCopyright©GasTurbGmbHAnOptimizationofeachindividualstageispossibleandiscontrolledhere.Overstresseddisksaredisplayedyellow.Justlikeinthegeometrydesignwindow,Input,calculatedBoundaryConditionsandOutputofeachdiskcanbeaccessedhereHerewecanselectthestagewewanttoworkonanddefineamaterialforeachstage.DiskDesignDataCopyright©GasTurbGmbHThelowerlimitoftheboreradiusisdefinedinthegeometrydesignofthecorrespondingcomponent.InputOutputCalculatedInputDiskDesignDataCopyright©GasTurbGmbHEqualtothetemperaturedifferencefromtheplatformtothecenterpointofthedisk.DiskshapeoptimizationoptionsDiskdesigncriteriaBladesaremodeledasplatesBladeAttachmentCopyright©GasTurbGmbHStressAdaptationOptionsOptimizationOffCopyright©GasTurbGmbHAdaptBoreWidth=0borewidthisasgivenbyinputAdaptBoreWidth=1borewidthisadaptedtothetargetdesignstressmarginAdaptBoreRadius=0