Vortex pattern of the turbulent flow around a single cube on a flat surface and its heat transfer at different attack angles

被引:0
作者
V. I. Terekhov
A. I. Gnyrya
S. V. Korobkov
机构
[1] Kutateladze Institute of Thermophysics SB RAS,
[2] Tomsk State University of Architecture and Civil Engineering,undefined
来源
Thermophysics and Aeromechanics | 2010年 / 17卷
关键词
cube; attack angle; vortex structure; heat transfer; and flow detachment;
D O I
暂无
中图分类号
学科分类号
摘要
Experimental results on convective heat transfer from a single cube on a flat surface are presented for different attack angles to the incident flow and Reynolds numbers. The character of vortex formation and the effect of flow structure on heat transfer at detached flow around a cube were studied by visualization. Local heat transfer and heat transfer averaged over the separate faces and the whole lateral surface of the cube were studied. Contribution of separate cube faces to total heat transfer depending on the attack angle was estimated. Data obtained were compared with those published in literature. The reasons for observed differences caused by the effect of many factors: boundary layer thickness, turbulence level of the incident flow, channel constraint, etc., are analysed.
引用
收藏
页码:489 / 500
页数:11
相关论文
共 43 条
  • [1] Chyu M.K.(1996)Heat transfer on the base surface of three-dimensional protruding elements Inter. J. Heat Mass Transfer 39 2925-2935
  • [2] Natarajan V.(1977)Forced convection heat transfer at an inclined and yawed square plate — Application to solar collectors, 120 Trans. ASME, J. Heat Transfer 99 513-519
  • [3] Sparrow E. M.(1967)Heat transfer of a rectangular rod in a liquid flow Proc. AN Lit. SSR, Ser. B 4 95-109
  • [4] Tien K.K.(1986)Local heat transfer from a square prism to an air stream Inter. J. Heat Mass Transfer 29 777-784
  • [5] Zhukauskas A.A.(1977)The flow around a surface-mounted cube in uniform and turbulent streams J. Fluid Mech. 79 307-336
  • [6] Leizeron A.N.(1994)Effect of flow angle-of-attack on the local heat/mass transfer from a wallmounted cube Trans. ASME, J. Heat Transfer 116 552-560
  • [7] Igarashi T.(1999)Experimental study of the local convection heat transfer from a wall-mounted cube in turbulent channel flow Trans. ASME, J. Heat Transfer 121 564-573
  • [8] Castro I.P.(2001)Local heat transfer around a wall-mounted cube in turbulent boundary layer Inter. J. Heat Mass Transfer 44 3385-3395
  • [9] Robins A.G.(2003)Local heat transfer around a wall-mounted cube at 45° to flow in a boundary layer Inter. J. Heat Fluid Flow 24 807-815
  • [10] Natarajan V.(2000)Convective heat transfer of a cube mounted on a plane at different attack angles Proc. MMF-IV, Minsk, ITMO NASB 1 24-27