目錄：Chapter1IntroductionChapter2TheoryofPhysicalSimilarityChapter3WindTunnelsChapter4ExperimentalModelsChapter5FlowMeasurementChapter6MeasurementUncertainty第1題WhatmethoddidMachusetodiscovertheshockwavephenomenoninsupersonicflight?ANumericalsimulationBTheoreticalderivationCExperimentalmethodDImagination第2題Whatprincipleisutilizedforastationarymodelinawind-tunnelbeingequivalenttoaflyingaircraftinair?AFlightprincipleBRelativityPrincipleofmotionCAircraftdesignprincipleDmeaurementprinciple第3題Whofliedthefirstpoweredaircraftintheworld?AWrightbrothersBF.H.WenhamCE.MariotteDB.Robins第4題Whatarethreemainbranchesoffluidmechanics?ATheoreticalFluidMechanicsBShipFluidMechanicsCExperimentalFluidMechanicsDComputationalFluidMechanics正確答案：ACD第5題whattechniquescontributetodevelopmentofexperimentaltechniques？ANumericalsimulationmethodsBNewsensorsCLaserDDataacquisition正確答案：BCD第6題Whatshouldweconsiderinanexperimentofaerodynamics?ARecordexperimenter'snameBSimulationofexperimentalconditionsCMeasurementofflowquantitiesDAnalysisofmeasurementerrors正確答案：BCD第7題DoesExperimentalaerodynamicsbelongtoExperimentalfluidmechanics第8題Robinsdesignedandconstructedthefirstwindtunnelintheworld.第9題Windtunnelsareroughlyclassifiedbyindustrialwindtunnelsandresearchwindtunnels.第1題Whichistheunitofvelocityinthefollowing?Akg/m3Bm/sCkg/ms2Dkg/ms第2題Howmanydimensionlessquantitiescanrepresentan+1quantities'systemifthereareKbasequantitiesinthePItheorem?An+1-kBn-kCn+kDn+1+k第3題Whichsimilarityparameterrepresentstherelationshipbetweenamomentumtransportationandheattransportation?AReynoldsnumberBMachnumberCStrouhalnumberDPrandtlnumber第4題Whichsimilarityparametersistheratioofconvectiveinertialtoelasticforce?AReynoldsnumberBMachnumberCStrouhalnumberDPrandtlnumber第5題Whichsimilarityparametersistheratioofconvectiveinertialtounsteadyinertialforce?AReynoldsnumberBMachnumberCStrouhalnumberDPrandtlnumber第6題Whichsimilarityparametersistheratioofconvectiveinertialtoviscosityforce?AReynoldsnumberBMachnumberCStrouhalnumberDPrandtlnumber第7題Whichofthefollowingsimilaritybelongtothephysicalsimlarity?AGeometricsimilarityBKinematicsimilarityCDynamicsimilarityDHeatsimilarity正確答案：ABCD第8題WhichofthefollowingequationsbelongtoNavier-Stokesequations?ABernoulliequationBMomentumequationCEnergyequationDContinuityequation正確答案：BCD第9題Whicharethebasicquantitiesinmechanics?ALengthLBNewtonNCTimeTDMassM正確答案：ACD第10題Whichsimilarityparametersarecommonlyusedinexperimentsoffluidmechanics?APrandtlnumberBReynoldsnumberCMachnumberDStrouhalnumber正確答案：ABCD第11題Whichofthefollowingexpressionsaretrue?Adiml=MBdimμ=L?1MT?2Cdimu=LT?1Ddimρ=L?3M正確答案：CD第12題Whatstepsareneededforderivingsimilarityparametersusingsimilaritytransformation?AListthegoverningequationsBListthesimilaritytransformationCSubstitutethetransformationintotheequationsDLetthecombinedquantitiesfromallscaleratiosareone正確答案：ABCD第13題Geometricsimilarityindicatesratiosofcorrespondingdimensionsbetweenaprototypeandamodelareequal.第14題Forsimilarityphenomena,therelationshipbetweenphysicalquantitiescanbeconvertedintotherelationshipbetweenthesimilarityparameters.ThisistheSecondSimilarityTheorem.第15題Basedongeneralfunctionrelationships,similarityparameterscanbeobtainedbyDimensionalAnalysis第16題Characteristicquantitiesarequantitieswithalldimensionindicesbeingzero.第17題Fortwophenomenaofphysicalsimilarity,thereexistdimensionlessquantitieswiththesamenumericalvalue,calledsimilarityparameters,whicharecomposedofcharacteristicquantities第18題Afterchoosingbasicquantities,listdimensionalmatrixanditsdeterminantmustbe0.Chapter3quiz第1題Whichwindtunnelcancoversubsonic/transonic/supersonicflowatatestsection?ADualspeedwindtunnelsBShockwindtunnelsCTriplespeedwindtunnelsDFreeflightwind-tunnels第2題Whichsituationcandecreaseenergylossinawindtunnel?AIncreasepressureBReducepressureCIncreaseairflowspeedDReduceairflowspeed第3題Whereisaexperimentalmodelinstalledinawindtunnel?ATestsectionBPowersectionCContractsectionDDiffuser第4題InaDeLavalnozzle,ifupstreamflowissubsonicanddownstreamflowissupersonic,whichstatementiscorrect?AdownstreampressuredecreaseBdownstreamTemperatureincreaseCdownstreamMa＜1DDownstreampressureincrease第5題WhichofthefollowingmeasuresdoesnotbelongtoQuiethypersonicwindtunnels?AHighlypolishedinternalwallofanozzleBGuidevaneincornersCBoundarylayersuctionatathroatDVerylongnozzletopreventG?rtlerinstabilities第6題Whichtestdurationtimeisunreasonableinthecurrenthighenthalphyandhypersonicwindtunnels?A2hoursB1000secondsC10secondsD1millisecond第7題Whatconditionsdoesatestsectionneedtosatisfy?AHighcostBUniformspatialdistributionofvelocityCLowvelocityfluctuationDUniformspatialdistributionofvelocity正確答案：BCD第8題WhatareKeygeometricparametersforacontractionsection?AContractionratiosBInternalspaceCLengthDContourcurve正確答案：ACD第9題Whatarethecoolingapproachesforsubsonicwindtunnels?AliquidcoolingincornervanesoruseradiatorBExteriorwallcoolingCAirexchangecoolingDSmootherinteriorwall正確答案：ABC第10題Whatarethemaindifficultiesfortransonicwindtunnels,comparedwithsubsonicwindtunnels?AChokedflowinatestsectionBSubsonicwallinterferenceCShockreflectionDmanufacturecost正確答案：ABC第11題WhatquantitiesdomassflowreliesononceathroatreachesMa=1?AFlowvelocityBThroatareaCTotalpressureDTotaltemperature正確答案：ACD第12題Whatarethemaintypesofsupersonicwindtunnels?AHot-shotwind-tunnels(plasma)BContinuoussupersonicwindtunnelsCIntermittentsupersonicwindtunnelsDShockwindtunnels正確答案：BC第13題CryogenicwindtunnelisatypeofHypersonicwindtunnel.第14題Manumberwouldnotinfluencetheshapeofashockwave.第15題Inavarying-cross-sectionduct,airflowenergylossisproportionaltovelocitysquare.第16題Energyratioisameasureofeconomyofalow-speedwindtunnel.第17題Inanactualsituation,Ma=1generallyistheupperlimitofvelocityinsubsonicwindtunnels.第18題Aperforatedwallandplenumchamberaroundatestsectionareusedtoget0.8＜Ma＜1inatransonicwindtunnel.Chapter4quitz第1題Whichtypeofmodelisthebestforsimulatingtheintakeandexhaustofanengineofaircrat?ATurbofan-poweredsimulator(TPS)BSolidmodelwithmodifiedintakeandnozzleCFlow-throughmodelDSolidmodelwithanclosedintakeandnozzle第2題Inalow-speedandsubsonictesting,whatkindofmaterialistypicallyusedfordesigningamodel?ACeramicBAlloysteelCAluminumDpalstic第3題Whichofthefollowingoptionsarethesupportapproachesofanexperimentalmodel?ABottom-strutsupportBRear-stingsupportCWire-suspensionsupportDMagneticlevitationsupport正確答案：ABCD第4題Whatmotionformsofaircraftneedtobesimulatedusingadynamicdrivingmechanism?AUniformtranslationBPitchmotionCYawmotionDRollmotion正確答案：BCD第5題Forsupersonicexperiments,theratioofminimumcross-sectionareaofthemodeltotheareaofthetestsectionshouldbegreaterthanthetotalpressureratioofanormalshockinthetestsection.第6題Anoseconeatthefrontoftheinletandatailconeatthenozzleisasimpleapproachtosimulatetheintakeandnozzleofanengineinawindtunnel.第7題Theartificialtransitionshouldbeplacedata5%-10%chordlengthattheupperandlowersurfacesofawing.Chapter5quitz第1題Inastaticresponseofameasuringsystem,whatdoesthesmallestmeasurableinputrepresent?AResolutionBLinearityCDynamicrangeDStaticsensitivity第2題Whichkindoflinearsystemsdoesaresistorbelongsto?AZero-ordersystemBFirst-ordersystemCSecond-ordersystemDThird-ordersystem第3題Inordertomeasurecorrectsignals,atleasthowmanytimeshigheristhesamplingfrequencyofameasuringsystemthanthefrequenciesofthemeasuredsignals?AthreeBtwoCOneandahalfDone第4題Inthefollowingcomponentsofstrainbalance,whichonecandirectlysenseaerodynamicforcesandmoments?AElasticitypartBStraingaugeCWheatstonebridgecircuitDSignalconditioning第5題Inamarker-basedFlowvisualization,whichonerepresentsacurve,anypointofwhichistangenttoavelocityvectorinaflowfield?AIsobarBStreaklineCStreamlineDPathline第6題Inamarker-basedFlowvisualization,whichonerepresentsthemotiontrajectoryoffluidparticle?AIsobarBStreaklineCStreamlineDPathline第7題WhatshallwedotoprotectagainstexternalelectromagneticinterferenceAOperatewithoutElectro-StaticdischargeglovesBElectricalgroundingCShieldedcablefortransmittingmeasuredsignalsDShieldingsources正確答案：BCD第8題Whichonesbelongtoatypeofbalanceforforcemeasurement?AMechanicalbalanceBStraingaugebalanceCPiezoelectricbalanceDMagneticsuspensionbalance正確答案：ABCD第9題Whatarethebenefitsofaresonantpressuresensor?AStronganti-interferenceabilityBQuasidigitaloutputCTemperaturesensitiveDHighcost正確答案：ABD第10題Whenusingthelaserinducedfluorescence(LIF)methodbasedonanopticalmeasurementprinciple,whatwillinfluencefluorescenceintensity?AConcentrationBDirectionofmeasurementCTemperatureDPressure正確答案：ACD第11題Inadensity-basedFlowvisualization,whatmethodcanbeusedtovisualizeinformationofdensityanditsgradient?ASchlierenmethodBShadowgraphmethodCInterferometrymethodDWeatherglass正確答案：ABC第12題Liquid-columndifferentialpressuregaugebelongstoafirst-ordersystem.第13題Therelationshipthatconnectsthestaticinputasafunctionofthestaticoutputiscalledastaticresponseofthesystem.第14題Temperatureeffectsmustbetakenintoconsiderationwhendesigningastraingaugebalance.第15題Whenmeasuretheairflowtotal-temperature,astagnationtemperaturelossduetoaheatconductionandradiationshouldbetakenintoconsideration.第16題Turbulenceintensityisasimilarityparameter