在超声速流动中激波与边界层的干扰特性
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摘要
激波与物面边界层的干扰涉及可压缩流动的稳定性、转捩、分离等问题,直接影响到飞行器的阻力、表面热防护和飞行性能等工程技术问题。首先总结了前人对于激波与边界层的干扰所做的工作,之后重点研究和对比分析了超声速与跨声速流动中,正激波、斜激波以及头部激波对于飞行器层流和湍流边界层的干扰影响。激波强度的不同对边界层干扰作用不同,在强干扰情况下将会引起边界层分离和翼型失速。
The compression boundary layer transition and separation caused by the interference of the shock and the boundary layer directly affect the drag, surface thermal protection and the flight performance of flying vehicles. This paper first reviews the past work on the interference between the shock wave and the boundary layer. And then, the effects of the forward shock, the oblique shock and the head shock on the laminar flow and the turbulent boundary layer of supersonic and transonic flows are studied and compared. The shock waves of different intensities have different effects on the boundary layer. A strong interference is more likely to cause the separation and the airfoil stall.
The compression boundary layer transition and separation caused by the interference of the shock and the boundary layer directly affect the drag, surface thermal protection and the flight performance of flying vehicles. This paper first reviews the past work on the interference between the shock wave and the boundary layer. And then, the effects of the forward shock, the oblique shock and the head shock on the laminar flow and the turbulent boundary layer of supersonic and transonic flows are studied and compared. The shock waves of different intensities have different effects on the boundary layer. A strong interference is more likely to cause the separation and the airfoil stall.
引文
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3 Ludwig P,Ludwig P,Ludwig P,et al.On fluid flow with very little friction.International Congress of Mathematicians,1904
4 Liepmann HW,Laufer J.Investigations of free turbulent mixing.Technical Report Archive&Image Library,1947
5 Liepmann HW,Puckett AE.Introduction to Aerodynamics of A Compressible Fluid.New York:John Wiley&Sons,Inc,1947
6 Liepmann HW,Fila GH.Investigations of effects of surface temperature and single roughness elements on boundarylayer transition.Technical Report Archive&Image Library,1947
7 Ackeret J.Thermal power plant and its working medium,with method of operation.US patent 2453886,1948
8 解少飞,宫建,纪锋等.转捩边界层对压缩拐角流动影响的现象研究.全国激波与激波管学术会议,2014
9 刘沛清.流体力学通论.北京:科学出版社,2017
10 Van Dyke M.An Album of Fluid Motion.United States:Parabolic Press Inc,1982
2 王振锋,白菡尘,桂业伟.压缩楔流动分离影响因素分析.全国激波与激波管学术会议,2010
3 Ludwig P,Ludwig P,Ludwig P,et al.On fluid flow with very little friction.International Congress of Mathematicians,1904
4 Liepmann HW,Laufer J.Investigations of free turbulent mixing.Technical Report Archive&Image Library,1947
5 Liepmann HW,Puckett AE.Introduction to Aerodynamics of A Compressible Fluid.New York:John Wiley&Sons,Inc,1947
6 Liepmann HW,Fila GH.Investigations of effects of surface temperature and single roughness elements on boundarylayer transition.Technical Report Archive&Image Library,1947
7 Ackeret J.Thermal power plant and its working medium,with method of operation.US patent 2453886,1948
8 解少飞,宫建,纪锋等.转捩边界层对压缩拐角流动影响的现象研究.全国激波与激波管学术会议,2014
9 刘沛清.流体力学通论.北京:科学出版社,2017
10 Van Dyke M.An Album of Fluid Motion.United States:Parabolic Press Inc,1982