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李锋, 周伟江, 王强, 汪翼云. 细长体背风面横向非对称分离的研究[J]. 力学学报, 1995, 27(S): 114-119. DOI:10.6052/0459-1879-1995-S-1995-512
引用本文: 李锋, 周伟江, 王强, 汪翼云. 细长体背风面横向非对称分离的研究[J]. 力学学报, 1995, 27(S): 114-119.DOI:10.6052/0459-1879-1995-S-1995-512
THE INVESTIGAION OF ASYMMETRIC SEPARAION ON SLENDER BODY[J]. Chinese Journal of Theoretical and Applied Mechanics, 1995, 27(S): 114-119. DOI:10.6052/0459-1879-1995-S-1995-512
Citation: THE INVESTIGAION OF ASYMMETRIC SEPARAION ON SLENDER BODY[J].Chinese Journal of Theoretical and Applied Mechanics, 1995, 27(S): 114-119.DOI:10.6052/0459-1879-1995-S-1995-512

细长体背风面横向非对称分离的研究

THE INVESTIGAION OF ASYMMETRIC SEPARAION ON SLENDER BODY

  • 摘要:用数值模拟方法研究了超声速情况下,无限长细长体背风面的涡结构。数值模拟的出发方程和计算格式分别为全N-S方程和二阶空间精度的TVD格式。数值结果给出了圆锥、半球柱体和椭圆锥在不同攻角下的流场结果。结果表明圆锥在攻角α=15°,20°和25°时背风面呈现明显的稳定非对称横向分离,而半球柱体和椭圆锥在32.5°和25°时背风面均未出现非对称的横向分离结构。

    Abstract:Vortex structure on the slender bodies at supsonic flow is investigated by numer-ical method.The Navier-Stokes equations and TVD scheme are applied for the numerical simulation.The results present some characteristics of flow over the slender cone,hemi-spheric cylinder and elliptic cone and show that within the range of angle 1 5° 25°,the asymmetric vortices are formed on the leeside of slender cone and no asymmetric vortices are found for the hemisphere cylinder or elliptic cone at angle of attack of 32.5...

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