空气动力学学报
空氣動力學學報
공기동역학학보
ACTA AERODYNAMICA SINICA
2009年
z1期
101-105
,共5页
张占峰%毕志献%沈清%赵学军%宫建
張佔峰%畢誌獻%瀋清%趙學軍%宮建
장점봉%필지헌%침청%조학군%궁건
高超声速%边界层%攻角效应%小攻角
高超聲速%邊界層%攻角效應%小攻角
고초성속%변계층%공각효응%소공각
hypersonic%boundary layer%attack angle effect%small angle of attack
主要介绍了一种用于高超声速湍流边界层表面参数测量的试验方法,利用边界层的表面热流值,作为判断边界层转捩与否的依据,开展边界层攻角效应转捩特性试验研究.试验在我院FD-20炮风洞中进行,马赫数为6,试验模型是半锥度5°的圆锥模型.开展了对于圆锥模型,头部半径对转捩位置的影响,小攻角情况下对圆锥模型转捩位置的影响,并且获得了在2°和3°攻角情况下圆锥模型的攻角效应转捩全局曲线.试验结果证实了,在小攻角下,随着攻角的增加,边界层迎风面转捩位置向后移动,背风面转捩位置向前移动.
主要介紹瞭一種用于高超聲速湍流邊界層錶麵參數測量的試驗方法,利用邊界層的錶麵熱流值,作為判斷邊界層轉捩與否的依據,開展邊界層攻角效應轉捩特性試驗研究.試驗在我院FD-20砲風洞中進行,馬赫數為6,試驗模型是半錐度5°的圓錐模型.開展瞭對于圓錐模型,頭部半徑對轉捩位置的影響,小攻角情況下對圓錐模型轉捩位置的影響,併且穫得瞭在2°和3°攻角情況下圓錐模型的攻角效應轉捩全跼麯線.試驗結果證實瞭,在小攻角下,隨著攻角的增加,邊界層迎風麵轉捩位置嚮後移動,揹風麵轉捩位置嚮前移動.
주요개소료일충용우고초성속단류변계층표면삼수측량적시험방법,이용변계층적표면열류치,작위판단변계층전렬여부적의거,개전변계층공각효응전렬특성시험연구.시험재아원FD-20포풍동중진행,마혁수위6,시험모형시반추도5°적원추모형.개전료대우원추모형,두부반경대전렬위치적영향,소공각정황하대원추모형전렬위치적영향,병차획득료재2°화3°공각정황하원추모형적공각효응전렬전국곡선.시험결과증실료,재소공각하,수착공각적증가,변계층영풍면전렬위치향후이동,배풍면전렬위치향전이동.
To investment boundary layer transition characteristic with attack angle effect,an Experiment method was introduced to measure the hypersonic turbulence boundary layer parameters which used surface heat flux as basis to judge the boundary transition or not.The experiment was carried out in FD-20 piston gun tunnel at Mach number 6 using 5°haft angle circular cone model.The nose tip radius and small attack angle effects on transition position on circular cone model were researched and attack angle effect transition curves were obtained at 2°and 3°.The test results showed that at small attack angle condition with increasing of angle of attack transition position move to bottom at windward and to nose tip at leeward in the boundary layer.