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

端板对二维矩形风洞试验模型气动特性的影响

郑云飞 刘庆宽 马文勇 刘小兵

郑云飞, 刘庆宽, 马文勇, 等. 端板对二维矩形风洞试验模型气动特性的影响[J]. 实验流体力学, 2017, 31(3): 38-45. doi: 10.11729/syltlx20170015
引用本文: 郑云飞, 刘庆宽, 马文勇, 等. 端板对二维矩形风洞试验模型气动特性的影响[J]. 实验流体力学, 2017, 31(3): 38-45. doi: 10.11729/syltlx20170015
Zheng Yunfei, Liu Qingkuan, Ma Wenyong, et al. Effects of end plates on aerodynamic force of rectangular prisms in wind tunnel test[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(3): 38-45. doi: 10.11729/syltlx20170015
Citation: Zheng Yunfei, Liu Qingkuan, Ma Wenyong, et al. Effects of end plates on aerodynamic force of rectangular prisms in wind tunnel test[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(3): 38-45. doi: 10.11729/syltlx20170015

端板对二维矩形风洞试验模型气动特性的影响

doi: 10.11729/syltlx20170015
基金项目: 

国家自然科学基金资助项目 51378323

国家自然科学基金资助项目 51108280

国家自然科学基金资助项目 51308359

河北省杰出青年基金项目 E2014210138

详细信息
    作者简介:

    郑云飞(1985-), 男, 河北邢台人, 博士研究生。研究方向:桥梁风荷载与风致振动控制。通信地址:石家庄铁道大学风工程研究中心(050043)。E-mail:yunfeizheng@foxmail.com

    通讯作者:

    刘庆宽, E-mail:lqk@stdu.edu.cn

  • 中图分类号: U441.3

Effects of end plates on aerodynamic force of rectangular prisms in wind tunnel test

  • 摘要: 在节段模型风洞试验中,两端设置端板可以有效减小端部效应对风压分布的影响,从而保证气流在模型周围的二维流动,其中端板尺寸是影响端板效果的主要参数。为了明确不同尺寸端板对矩形断面气动特性的影响,以桥梁节段模型中最常见的3种宽高比(B/H分别为1、5和10)的二维矩形断面为研究对象,通过刚性模型测压试验,研究了端板尺寸对各模型的气动力、风压分布和斯托罗哈数St的影响。研究结果表明:模型的端部效应不仅仅对端部附近的风压有影响,对中间位置处风压的影响也不容忽视,设置端板是获得准确试验结果的重要保证;随着断面宽高比(B/H)逐渐增大,端部效应影响的程度和范围逐渐减小;随着端板尺寸的增大,模型背风面风压绝对值逐渐增大并趋向一稳定值;抑制端部效应的最小端板尺寸与结构的风迎角有关,风迎角增大,所需的端板也相应增大;有无端板对斯托罗哈数St也有明显影响。
  • 图  1  模型安装图(单位:mm)

    Figure  1.  Sketch of installation of test model(Unit: mm)

    图  2  模型点布置图(单位:mm)

    Figure  2.  Sketch of pressure tap arrangement of test model(Unit: mm)

    图  3  B/H=1模型各圈气动力随端板尺寸的变化规律(α=15°)

    Figure  3.  Aerodynamic force coefficients of rectangular cylinder (B/H=1) with various diameters of end plates (α=15°)

    图  4  B/H =1模型气动力随端板尺寸的变化规律

    Figure  4.  Aerodynamic force coefficients of rectangular cylinder (B/H=1) with various diameters of end plates

    图  5  B/H =5模型气动力随端板宽度的变化规律

    Figure  5.  Aerodynamic force coefficients of rectangular cylinder (B/H=5) with various widths of end plates

    图  6  B/H=5模型气动力随端板高度的变化规律

    Figure  6.  Aerodynamic force coefficients of rectangular cylinder (B/H=5) with various heights of end plates

    图  7  B/H=10模型气动力随端板高度的变化规律

    Figure  7.  Aerodynamic force coefficients of rectangular cylinder (B/H=5) with various widths of end plates

    图  8  B/H=10模型气动力随端板高度的变化规律

    Figure  8.  Aerodynamic force coefficients of rectangular cylinder (B/H=5) with various heights of end plates

    图  9  B/H=1模型F圈风压分布随端板尺寸的变化规律

    Figure  9.  Wind pressure coefficients of rectangular cylinder (B/H=1) with various diameters of end plates

    图  10  B/H=5模型F圈风压分布随端板尺寸的变化规律(α=10°)

    Figure  10.  Wind pressure coefficients of rectangular cylinder (B/H=5) with various sizes of end plates (α=10°)

    图  11  B/H =10模型F圈风压系数随端板尺寸的变化规律(α=10°)

    Figure  11.  Wind pressure coefficients of rectangular cylinder (B/H=10) with various sizes of end plates (α=10°)

    图  12  B/H=1模型St随端板尺寸的变化规律(α=45°)

    Figure  12.  St of rectangular cylinder (B/H=1) with various diameters of end plates (α=45°)

    图  13  B/H=5模型St随端板尺寸的变化规律(α=10°)

    Figure  13.  St of rectangular cylinder (B/H=5) with various sizes of end plates (α=10°)

    图  14  B/H=10模型St随端板尺寸的变化规律(α=10°)

    Figure  14.  St of rectangular cylinder (B/H=10) with various sizes of end plates (α=10°)

  • [1] 中华人民共和国交通部. JTG/T D60-01—2004. 公路桥梁抗风设计规范[S]. 北京: 人民交通出版社, 2004.

    Ministry of Transport of the People's Republic of China. JTG/T D60-01—2004. Wind-resistant design specification for highway bridges[S]. Beijing: China Communications Press, 2004.
    [2] 王新荣, 顾明, 全涌.低紊流度下二维矩形截面柱体模型表面风压分布的雷诺数效应[J].建筑结构学报, 2015, 36(1): 143-149. http://www.cnki.com.cn/Article/CJFDTOTAL-JZJB201501020.htm

    Wang X R, Gu M, Quan Y. Reynolds number effects on wind pressure distribution of 2D rectangular prisms in low turbulence flow[J]. Journal of Building Structures, 2015, 36(1): 143-149. http://www.cnki.com.cn/Article/CJFDTOTAL-JZJB201501020.htm
    [3] 杨詠昕, 周锐, 张凯歌, 等.不同风嘴形式分体箱梁桥梁的静力风致稳定性能[J].土木工程学报, 2016, 49(6): 84-93. http://www.cnki.com.cn/Article/CJFDTOTAL-TMGC201606010.htm

    Yang Y X, Zhou R, Zhang K G, et al. Stationary aerodynamic stability performance of twin box girder bridges with different wind fairings[J]. China Civil Engineering Journal, 2016, 49(6): 84-93. http://www.cnki.com.cn/Article/CJFDTOTAL-TMGC201606010.htm
    [4] Blackburnal H M, Melbourneal W H. The effect of free-stream turbulence on sectional lift forces on a circular cylinder[J]. Journal of Fluid Mechanics, 1996, 306: 267-292. doi: 10.1017/S0022112096001309
    [5] Slaouti A, Gerrard J H. An experimental investigation of the end effects on the wake of a circular cylinder towed through water at low Reynolds number[J]. Journal of Fluid Mechanics, 1981, 112: 297-314. doi: 10.1017/S0022112081000414
    [6] Gerich D, Eckelmann H. Influence of end plates and free ends on the shedding frequency of circular cylinders[J]. Journal of Fluid Mechanics, 1982, 122: 109-121. doi: 10.1017/S0022112082002110
    [7] Stansby P K. Effects of end plates on base pressure coefficient of a circular-cylinder[J]. Aeronautical Journal, 1974, 78(757): 36-37. http://journals.cambridge.org/article_S0001924000036319
    [8] Lee B E. The susceptibility of tests on two-dimensional bluffbodies to incident flow variations[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1977, 2(2): 133-148. doi: 10.1016/0167-6105(77)90013-7
    [9] Obasaju E D. On the effects of end plates on the mean forces on square sectioned cylinder[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1979, 5(1-2): 179-186. doi: 10.1016/0167-6105(79)90030-8
    [10] Toy N, Fox T A. The effect of aspect ratio of end plate separation upon base pressures recorded on a square bar[J]. Experiment in Fluids, 1986, 4(5): 266-268. doi: 10.1007/BF00369118
    [11] Kubo Y, Miyazaki M, Kato K. Effects of end plates and blockage of strucural menbers on drag forces[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1989, 32(3): 329-342. doi: 10.1016/0167-6105(89)90006-8
    [12] 白桦. 影响桥梁及建筑结构风洞试验结果若干因素研究[D]. 西安: 长安大学, 2012.

    Bai H. Research on the effect of several factors on the wind tunnel test results of bridge and building structure[D]. Xi'an: Chang'an University, 2012.
    [13] 刘庆宽.多功能大气边界层风洞的设计与建设[J].实验流体力学, 2011, 25(3): 66-70 http://www.syltlx.com/CN/abstract/abstract10661.shtml

    Liu Q K. Aerodynamic and structure design of multifunction boundary-layer wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2011, 25(3): 66-70. http://www.syltlx.com/CN/abstract/abstract10661.shtml
    [14] Anthoine J, Olivari D, Portugaels D. Wind-tunnel blockage effect on drag coefficient of circular cylinder[J]. Wind and Structures, 2009, 12(6): 541-551. doi: 10.12989/was.2009.12.6.541
    [15] Knisely C W. Strouhal number of rectangular cylinders at incidence: a review and new data[J]. Journal of Fluids and Structures, 1990, 4(4): 371-393. doi: 10.1016/0889-9746(90)90137-T
    [16] Vickery B J. Fluctuating lift and drag on a long cylinder of square cross-section in a smooth and in a turbulent stream[J]. Journal of Fluid Mechanics, 1966, 25(3): 481-494. doi: 10.1017/S002211206600020X
  • 加载中
图(14)
计量
  • 文章访问数:  614
  • HTML全文浏览量:  267
  • PDF下载量:  22
  • 被引次数: 0
出版历程
  • 收稿日期:  2017-01-20
  • 修回日期:  2017-04-19
  • 刊出日期:  2017-06-25

目录

    /

    返回文章
    返回

    重要公告

    www.syltlx.com是《实验流体力学》期刊唯一官方网站,其他皆为仿冒。请注意识别。

    《实验流体力学》期刊不收取任何费用。如有组织或个人以我刊名义向作者、读者收取费用,皆为假冒。

    相关真实信息均印刷于《实验流体力学》纸刊。如有任何疑问,请先行致电编辑部咨询并确认,以避免损失。编辑部电话0816-2463376,2463374,2463373。

    请广大读者、作者相互转告,广为宣传!

    感谢大家对《实验流体力学》的支持与厚爱,欢迎继续关注我刊!


    《实验流体力学》编辑部

    2021年8月13日