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三棱柱的低雷诺数绕流研究

陆建洲 陶建军

陆建洲, 陶建军. 三棱柱的低雷诺数绕流研究[J]. 航空动力学报, 2016, 31(5): 1226-1233. doi: 10.13224/j.cnki.jasp.2016.05.026
引用本文: 陆建洲, 陶建军. 三棱柱的低雷诺数绕流研究[J]. 航空动力学报, 2016, 31(5): 1226-1233. doi: 10.13224/j.cnki.jasp.2016.05.026
LU Jian-zhou, TAO Jian-jun. Low-Reynolds-number wake flows of a triangular prism[J]. Journal of Aerospace Power, 2016, 31(5): 1226-1233. doi: 10.13224/j.cnki.jasp.2016.05.026
Citation: LU Jian-zhou, TAO Jian-jun. Low-Reynolds-number wake flows of a triangular prism[J]. Journal of Aerospace Power, 2016, 31(5): 1226-1233. doi: 10.13224/j.cnki.jasp.2016.05.026

三棱柱的低雷诺数绕流研究

doi: 10.13224/j.cnki.jasp.2016.05.026
基金项目: 

国家自然科学基金(11225209)

详细信息
    作者简介:

    陆建洲(1992-),男,江苏盐城人,博士生,主要从事流动稳定性与转捩方面的研究.

  • 中图分类号: V211;O357.4+1

Low-Reynolds-number wake flows of a triangular prism

  • 摘要: 数值模拟了截面为等腰三角形的棱柱在不可压牛顿流体中的二维绕流问题,分析了不同的截面尺度比以及三角形顶点迎风和背风安置时的尾流稳定性与阻力系数.研究发现对于较大截面尺度比的棱柱,在相同雷诺数的情况下顶点迎风相较于顶点背风的情况更易失稳从而产生侧向力,但阻力系数相对较小,当雷诺数为160时,最多能够减少19.4%.进一步地对比研究了顶点迎风与顶点背风在不同截面尺度比时升、阻力系数及涡脱落频率随雷诺数的变化关系.

     

  • [1] Jordan S K,Fromm J E.Laminar flow past a circle in a shear flow[J].Physics of Fluids,1972,15(6):972-976.
    [2] Kiya M,Tamura H,Arie M.Vortex shedding from a circular cylinder in moderate Reynolds number shear flow[J].Journal of Fluid Mechanics,1980,101(4):721-735.
    [3] Braze M,Chassaing P,Ha M H.Numerical study and physical analysis of the pressure and velocity fields in the near wake of a circular cylinder[J].Journal of Fluid Mechanics,1986,165(4):79-130.
    [4] Zhang H Q,Fey U,Noack B R.On the transition of the cylinder wake[J].Physics of Fluids,1995,7(4):779-794.
    [5] Williamson C H K.Vortex dynamics in the cylinder wake[J].Annual Review of Fluid Mechanics,1996,28(1):477-539.
    [6] Zdravkovich M M.Flow around circular cylinders[M].New York:Oxford University Press,1997.
    [7] 酆庆增.圆柱绕流的非线性动力学[J].力学进展,1994,24(4):525-546. FENG Qingzeng.Nonlinear dynamics of viscous flows past a circular cylinder[J].Advances in Mechanics,1994,24(4):525-546.(in Chinese)
    [8] Davis R W,Moore E F.A numerical study of vortex shedding from rectangles[J].Journal of Fluid Mechanics,1982,116(116):475-506.
    [9] Tamura T,Kuwahara K.Numerical study of aerodynamic behavior of a square cylinder[J].Journal of Wind Engineering and Industrial Aerodynamics,1990,33(90):161-170.
    [10] Sun R,Ng C O.Hydrodynamic interactions among multiple circular cylinders in an inviscid flow[J].Journal of Fluid Mechanics,2012,712(35):505-530
    [11] Bao Y,Zhou D,Zhao Y J.A two-step Taylor-characteristic-based Galerkin method for incompressible flows and its application to flow over triangular cylinder with different incidence angles[J].International Journal for Numerical Methods in Fluids,2010,62(11):1181-1208.
    [12] Iungo G V,Buresti G.Experimental investigation on the aerodynamic loads and wake flow features of low aspect-ratio triangular prisms at different wind directions[J].Journal of Fluids and Structures,2009,25(7):1119-1135.
    [13] Srigrarom S,Koh A K G.Flow field of self-excited rotationally oscillating equilateral triangular cylinder[J].Journal of Fluids and Structures,2008,24(5):750-755.
    [14] Abbassi H,Turki S,Nasrallah S B.Numerical investigation of forced convection in a plane channel with a built-in triangular prism[J].International Journal of Thermal Sciences,2001,40(7):649-658.
    [15] Ganga Prasath S,Sudharsan M,Vinodh Kumar V,et al.Effects of aspect ratio and orientation on the wake characteristics of low Reynolds number flow over a triangular prism[J].Journal of Fluids and Structures,2014,46:59-76
    [16] 李锋,白鹏,石文,等.微型飞行器低雷诺数空气动力学[J].力学进展,2007,37(2):257-268. LI Feng,BAI Peng,SHI Wen,et al.Low Reynolds number aerodynamics of micro air vehicle[J].Advances in Mechanics,2007,37(2):257-268.(in Chinese)
    [17] Posdziech O,Grundmann R.A systematic approach to the numerical calculation of fundamental quantities of the two-dimensional flow over a circular cylinder[J].Journal of Fluids and Structures,2007,23(3):479-499.
    [18] Park J,Kwon K,Choi H.Numerical solutions of flow past a circular cylinder at Reynolds numbers up to 160[J].Journal of Mechanical Science and Technology,1998,12(6):1200-1205.
    [19] Norberg C.Fluctuating lift on a circular cylinder:review and new measurements[J].Journal of Fluids and Structures,2003,17(1):57-96.
    [20] Bao Y,Tao J.The passive control of wake flow behind a circular cylinder by parallel dual plates[J].Journal of Fluids and Structures,2013,37:201-219.
    [21] Zielinska B J,Wesfreid J E.On the spatial structure of global modes in wake flow[J].Physics of Fluids,1995,7(6):1418-1424.
    [22] Abbassi H,Turki S,Nasrallah S B.Numerical investigation of forced convection in a plane channel with a built-in triangular prism[J].International Journal of Thermal Sciences,2001,40(7):649-658.
    [23] De A K,Dalal A.Numerical simulation of unconfined flow past a triangular cylinder[J].International Journal for Numerical Methods in Fluids,2006,52(7):801-821.
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出版历程
  • 收稿日期:  2014-05-21
  • 刊出日期:  2016-05-28

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