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沙波迎流面流速分布公式

马殿光, 董伟良, 徐俊锋

马殿光, 董伟良, 徐俊锋. 沙波迎流面流速分布公式[J]. 水科学进展, 2015, 26(3): 396-403. DOI: 10.14042/j.cnki.32.1309.2015.02.017
引用本文: 马殿光, 董伟良, 徐俊锋. 沙波迎流面流速分布公式[J]. 水科学进展, 2015, 26(3): 396-403. DOI: 10.14042/j.cnki.32.1309.2015.02.017
MA Dianguang, DONG Weiliang, XU Junfeng. Velocity distribution of nonuniform flow on the stoss side over dunes[J]. Advances in Water Science, 2015, 26(3): 396-403. DOI: 10.14042/j.cnki.32.1309.2015.02.017
Citation: MA Dianguang, DONG Weiliang, XU Junfeng. Velocity distribution of nonuniform flow on the stoss side over dunes[J]. Advances in Water Science, 2015, 26(3): 396-403. DOI: 10.14042/j.cnki.32.1309.2015.02.017

沙波迎流面流速分布公式

基金项目: 湘江长沙综合枢纽公司项目(CSSN-服务-38-09);中央级公益性科研院所基本科研业务费专项(TKS130105)
详细信息
    作者简介:

    马殿光(1976—),男,天津人,研究员,博士,主要从事水动力、泥沙以及港口航道工程研究。E-mail:dianguangma@163.com

    通讯作者:

    董伟良,E-mail:weiliangdong_hhu@163.com

  • 中图分类号: TV133.1

Velocity distribution of nonuniform flow on the stoss side over dunes

  • 摘要: 为进一步揭示沙波水流运动特性及提高沙波迎流面流速计算精度,采用两种概化模型,通过小水深沙波水槽试验,运用声学多普勒流速仪,对沙波沿程及垂线流速分布进行了测量。基于乐培九次生流理论公式,结合沙波水流特性,假定次生流在沙波迎流面上处于一个不断发展演变的过程,提出了发展函数和修正函数,得到了适用于沙波迎流面的流速垂线分布公式。研究结果表明:相对水深越小,沙波地形对迎流面水流作用越显著,使得上部流速减小、近底流速增大,且越靠近波峰这种现象越明显;建立的沙波流速公式与实测值吻合较好,能够准确地反映出迎流面流速变化规律。
    Abstract: In order to further reveal the flow characteristics over dunes and thus improve the calculation accuracy of velocity, the time-mean velocity profile was analyzed both experimentally and theoretically, and the instantaneous velocities were measured over two different forms of dunes at a shallow depth by virtue of Acoustic Doppler Velocimeter (ADV). Based on the secondary flow formula proposed by Yue, together with the flow characteristics of dunes, a formula of velocity vertical distribution over dunes, including the functions of development and correction, was put forward on the premise that the secondary flow on the stoss side was a continuous evolution process. The results showed that the effects of dunes on incident flow surface became more significant with the decrease of relative depth of water, which made the upside velocity decrease and near-bed velocity increase. By comparison with flume experimental data, the proposed formula had a good agreement with measured values, which could well describe the velocity profile.
  • 期刊类型引用(7)

    1. 丰青,肖千璐,张晓华,郑艳爽,李彬. 沙波迎流面流速及切应力垂线分布研究. 工程科学与技术. 2025(02): 93-103 . 百度学术
    2. 王盈心,李瑞杰,李玉婷. 沙波形态对波浪要素的响应. 南水北调与水利科技(中英文). 2021(03): 606-613+624 . 百度学术
    3. 李锦鹏,朱良生. 不同来流条件及沙波形态对沙波湍流场的影响. 华北水利水电大学学报(自然科学版). 2020(01): 8-17 . 百度学术
    4. 付辉,郭新蕾,杨开林,郭永鑫,王涛. 南水北调中线工程典型倒虹吸进口上游垂向流速分布. 水科学进展. 2017(06): 922-929 . 本站查看
    5. 徐敏,陈立,何俊,李东锋. 选沙相似律对模型沙波相似性影响的试验研究. 水科学进展. 2017(05): 712-719 . 本站查看
    6. 马殿光,董伟良,徐俊锋,乐培九. 沙波迎流面泥沙起动流速研究. 泥沙研究. 2016(02): 46-51 . 百度学术
    7. 董伟良,诸裕良,马殿光,徐俊锋. 二级沙波水流特性的大涡模拟. 水道港口. 2016(02): 154-158 . 百度学术

    其他类型引用(4)

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  • 被引次数: 11
出版历程
  • 收稿日期:  2014-10-28
  • 刊出日期:  2015-05-24

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