留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

上游双扰动对圆柱气动特性影响的数值模拟

张攀峰 王晋军 武哲

张攀峰, 王晋军, 武哲等 . 上游双扰动对圆柱气动特性影响的数值模拟[J]. 北京航空航天大学学报, 2006, 32(10): 1235-1240.
引用本文: 张攀峰, 王晋军, 武哲等 . 上游双扰动对圆柱气动特性影响的数值模拟[J]. 北京航空航天大学学报, 2006, 32(10): 1235-1240.
Zhang Panfeng, Wang Jinjun, Wu Zheet al. Numerical simulation on upstream dual rods′ effect on aerodynamic characteristics of cylinder[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(10): 1235-1240. (in Chinese)
Citation: Zhang Panfeng, Wang Jinjun, Wu Zheet al. Numerical simulation on upstream dual rods′ effect on aerodynamic characteristics of cylinder[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(10): 1235-1240. (in Chinese)

上游双扰动对圆柱气动特性影响的数值模拟

基金项目: 国家自然科学基金资助项目(10272016)
详细信息
    作者简介:

    张攀峰(1978-),男,湖北武汉人,博士后,pfzhang@ase.buaa.edu.cn.

  • 中图分类号: O 357.5; V 211.3

Numerical simulation on upstream dual rods′ effect on aerodynamic characteristics of cylinder

  • 摘要: 通过用商用计算流体力学软件FLUENT 6.0中的SIMPLE方法求解二维非定常层流模型,对雷诺数Re=200时上游双扰动体对下游圆柱气动特性影响进行了数值模拟研究.计算结果表明当双扰动体相隔较近(H/d=1.1,1.33)时,其后形成单一的Karman涡街,它们对下游圆柱的干扰作用类似于单扰动体时的情况,但是流动结构发生变化的临界间距Lcri较之有效宽度相同的单扰动体的要大,因此可以推断出在该种布置下双扰动体和圆柱绕流会出现2种流动模式.在空穴流动模式下面,下游圆柱的阻力和升力脉动最多减小94%和79%,系统阻力(包括圆柱和扰动体)也能减小33%.而当双扰动体尾流为双Karman涡街时(双扰动体相隔较远H/d=3.33,5.0),圆柱迎风面部分区域仍受到来流的冲击作用,气动力减小有限.

     

  • [1] Zdravkovich M M. Flow around circular cylinders[M]. Oxford:Oxford University Press, 1997 [2] Lesage F, Gartshore I S. A method of reducing drag and fluctuating side force on bluff bodies[J]. J of Wind Engineering and Industrial Aerodynamics, 1987,25:229-245 [3] Igarashi T. Drag reduction of a square prism by flow control using a small rod[J]. J of Wind Engineering and Industrial Aerodynamics, 1997, 69-71:141-153 [4] Igarashi T, Terachi N. Drag reduction of flat plate normal to airstream by flow control using a rod [J]. J of Wind Engineering and Industrial Aerodynamics, 2002, 90:359-376 [5] Prasad A, Williamson C H K. A method for the reduction of bluff body drag[J]. J of Wind Engineering and Industrial Aerodynamics, 1997, 69-71:155-167 [6] Sakamoto H, Tan K, Takeuchi N, et al. Suppression of fluid forces acting on a square prism by passive control[J]. J Fluid Engineering, Trans of the ASME, 1997, 119:506-511 [7] Zhang P F, Wang J J, Lu S F, et al. Aerodynamic characteristics of a square cylinder with a rod in a staggered arrangement[J]. Experiments in Fluids, 2005, 38:494-502 [8] Wang J J, Zhang P F, Lu S F, et al. Drag reduction of a circular cylinder using an upstream rod[J]. Flow, Turbulence and Combustion, 2006, 76(1):83-101 [9] Norberg C. Flow around a circular cylinder:aspects of fluctuating lift [J]. Journal of Fluids and Structures, 2001,15:459-469 [10] Slaoutiand A, Stansby P K. Flow around two circular cylinders by the random-vortex method[J]. Journal of Fluids and Structures, 1992, 6:641-670 [11] Mittal S, Kumar V, Raghuvanshi A. Unsteady incompressible flows past two cylinders in tandem and staggered arrangements [J]. International Journal for Numerical Methods in Fluids, 1997, 25(11):1315-1344 [12] 张攀峰.上游扰动体减低钝体阻力机理研究 .北京:北京航空航天大学航空科学与工程学院,2005 Zhang Panfeng. Drag reduction of the bluff bodies by using an upstream interference . Beijing:School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics,2005(in Chinese) [13] Zhou Y, Zhang H J, Yiu M W. The turbulent wake of two side-by-side circular cylinders[J]. J Fluid Mech, 2002, 458:303-332 [14] Meneghini J R, Saltara F, Siqueira C L R, et al. Numerical simulation of flow interference between two circular cylinders in tandem and side-by-side arrangements[J]. J of Fluids and Structures, 2001, 15(2):327-350
  • 加载中
计量
  • 文章访问数:  2904
  • HTML全文浏览量:  43
  • PDF下载量:  1024
  • 被引次数: 0
出版历程
  • 收稿日期:  2005-12-13
  • 网络出版日期:  2006-10-31

目录

    /

    返回文章
    返回
    常见问答