NumericalStudyontheEffectofReardiffuserAngleontheAerodynamicPerformancefortheDrivingStabilityofaBluntBody

NumericalStudyontheEffectofReardiffuserAngleontheAerodynamicPerformancefortheDrivingStabilityofaBluntBody.pdf
Rear-diffuserAngleisanimportantfactorinfluencingtheaerodynamicperformanceofabluntbody.NumericalstudyisperformedtoevaluatetheinfluenceoftheRear-diffuseAngleonaerodynamic,andtherelationshipbetweenaerodynamicandRear-diffuserAngleissummarizedinthispaper.TheflowaroundthebluntbodyisanalyzedanddiscussedfordetailunderstandingtheeffectoftheRear-diffuserAngletoaerodynamic.Passengervehicleisatypicalbluntbody,theflownearthesetypesofvehiclemarkedlyinfluencetheiraerodynamiccharacteristics.Overthepastseveraldecades,manyinvestigationsoftheflowaroundthesevehicleshavebeencarriedoutontheupper-rearregion.Ahmedetal,performedanexperimentalstudyoftheeffectsofbaseslantangleofahatchbackshapeonthetime-averagedpropertiesoftheflow.Theyproposedawakevortexsystemforhatchbacks.Subsequently,Nouzawaetal,investigatedtheflowstructureofthenotchbacktypevehicle.Theystructuredaflowpatternfornotchbackswithnoreardiffuserslant.Theirresultsindicatedthattheaerodynamicdragcouldbeincreasedbygenerationofthetrailingvortexatthetrunk-deckandtheso-calledarchvortexbehindthebacklight.ThesestudiesimprovedourunderstandingoftheinfluenceoftheRear-diffuserAngleontheaerodynamicperformance.
作者：SUNQingzhuCHUL-HoKim
作者单位：DepartmentofAutomotiveEngineering,SeoulNationalUniversityofScienceandTechnology
母体文献：2018中国汽车工程学会年会论文集
会议名称：2018中国汽车工程学会年会  
会议时间：2018年11月1日
会议地点：上海
主办单位：中国汽车工程学会
语种：chi
分类号：
关键词：aerodynamic  fluid  rear-diffuserangle  PHOENICS  CFDanalysis
在线出版日期：2021年9月26日
基金项目：
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NumericalStudyontheEffectofReardiffuserAngleontheAerodynamicPerformancefortheDrivingStabilityofaBluntBody.pdf

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