›› 2014, Vol. 34 ›› Issue (3): 38-45.doi: 10.3780/j.issn.1000-758X.2014.03.006

Previous Articles     Next Articles

AerodynamicEngineeringPredictionMethodsforWingedReentryVehicles

HAOJiaao,JIANGChongwen,GAOZhenxun,LEEChunhian   

  1. (NationalLaboratoryforComputationalFluidDynamics,BeihangUniversity,Beijing100191)
  • Received:2013-10-11 Revised:2013-12-05 Online:2014-06-25 Published:2014-06-25

Abstract: Focusedonthecalculationinaccuracyofexistingengineeringpredictionmethodsforwingedreentryvehicles,amodifiedcomponentpartitionstrategyandpressuremethodselectionrationaleweredeveloped.ThroughcomparisonoftheexperimentaldataandtheengineeringpredictiononlongitudeaerodynamiccharacteristicsofspaceshuttleorbiterandaX-34likevehicle,itisshownthatthepredictionmethodcanmeettheaccuracyrequirementsatMach3.0orhigher.Themaximumrelativelyerrorislessthan10%forliftcoefficientsanddragcoefficients.Comparedwiththeexistingmethods,theproposedstrategyandrationaleimprovesthepredictionaccuracyinpitchingmomentcoefficient,withthesameaccuracyinliftanddragcharacteristics.Besides,thepredictivepressuredistributionisinagreementwiththenumericalresults.

Key words: Aerodynamicforce, Engineeringpredictionmethod, Hypersonic, Supersonic, Wingedreentryvehicles