EI、Scopus 收录
中文核心期刊

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

明渠中悬移质的弥散-对流方程及悬浮机理

张磊 钟德钰 吴保生 刘磊

张磊, 钟德钰, 吴保生, 刘磊. 明渠中悬移质的弥散-对流方程及悬浮机理[J]. 力学学报, 2013, 45(1): 83-93. doi: 10.6052/0459-1879-12-146
引用本文: 张磊, 钟德钰, 吴保生, 刘磊. 明渠中悬移质的弥散-对流方程及悬浮机理[J]. 力学学报, 2013, 45(1): 83-93. doi: 10.6052/0459-1879-12-146
Zhang Lei, Zhong Deyu, Wu Baosheng, Liu Lei. THE CONVECTION-DISPERSION EQUATION AND THE MECHANISM OF SUSPENSION IN TURBULENT OPEN-CHANNELS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1): 83-93. doi: 10.6052/0459-1879-12-146
Citation: Zhang Lei, Zhong Deyu, Wu Baosheng, Liu Lei. THE CONVECTION-DISPERSION EQUATION AND THE MECHANISM OF SUSPENSION IN TURBULENT OPEN-CHANNELS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(1): 83-93. doi: 10.6052/0459-1879-12-146

明渠中悬移质的弥散-对流方程及悬浮机理

doi: 10.6052/0459-1879-12-146
基金项目: 国家自然科学基金(51039004) 和十二五科技支撑计划(2012BAB05B01) 资助项目.
详细信息
    通讯作者:

    钟德钰

  • 中图分类号: TV142.3

THE CONVECTION-DISPERSION EQUATION AND THE MECHANISM OF SUSPENSION IN TURBULENT OPEN-CHANNELS

Funds: The project was supported by the National Natural Science Foundation of China (51039004) and the National Key Technologies R&D Program of China during the 12th Five-Year Plan Period (2012BAB05B01).
  • 摘要: 悬移质泥沙通常构成冲积河流总输沙量的主体, 研究悬移质的悬浮机理具有重要的意义. 以双流体模型为基础, 通过引入弥散速度的概念, 建立了悬移质泥沙的输沙方程以及泥沙扩散系数的本构关系. 应用该方程分析了二维明渠均匀流中悬移质泥沙浓度垂向分布规律, 并与Einstein 和Chien 的泥沙浓度实验资料及经典扩散理论进行了对比. 以此为基础, 分析了紊动扩散、颗粒自身的紊动、颗粒碰撞应力对泥沙悬浮的影响在垂向上的变化, 以及浓度、粒径等对这些因素的影响. 结果表明, 泥沙颗粒在明渠紊流中的扩散是浑水的紊动扩散、颗粒自身的紊动、颗粒碰撞应力3 部分不同机制共同作用的结果, 把泥沙颗粒的悬浮简单归因于水流的紊动是不全面的.

     

  • 1 Rouse H. Modern concepts of the mechanics of fluid turbulence. Trans ASCE, 1937, 102: 463-505
    2 张瑞瑾. 河流泥沙动力学. 北京:水利水电出版社, 1989 (Zhang Ruijin. Dynamics of Sediments Transport in Rivers. Beijing: WaterPower Press, 1989 (in Chinese))
    3 Yalin MS. Mechanics of Sediment Transport. 2nd edn. Toronto, Canada: Pergamon Press, 1977
    4 钱宁, 万兆惠. 泥沙运动力学. 北京: 科学出版社, 1984 (Qian Ning, Wan Zhaohui. Mechanics of Sediment Transport. Beijing: Sience Press, 1984 (in Chinese))
    5 Fu XD, Wang GQ, Shao XJ. Vertical dispersion of fine and coarse sediments in turbulent open-channel flows. J Hydraul Eng-ASCE,2005, 131(10): 877-888  
    6 Greimann BP, Holly FM. Two-phase flow analysis of concentration profiles. J Hydraul Eng-ASCE, 2001, 127(9): 753-762  
    7 Zhong DY, Wang GQ, Sun QC. Transport equation for suspended sediment based on two-fluid model of solid/liquid two-phase flows. J Hydraul Eng-ASCE, 2011, 137(5): 530-542  
    8 Hunt JN. The turbulent transport of suspended sediment in open channels. Proc R Soc Lon Ser-A,1954, 224(1158): 322-335  
    9 张小峰, 陈志轩. 关于悬移质含沙量沿垂线分布的几个问题. 水 利学报, 1990, 10: 41-48 (Zhang Xiaofeng, Chen Zhixuan. On the distribution of sediment concentration. J Hydraul Eng, 1990, 10:41-48 (in Chinese))
    10 Cao ZX, Wei LY, Xie JH. Sediment-laden flow in open channels from two-phase flow viewpoint. J Hydraul Eng-ASCE, 1995,121(10): 725-735  
    11 van Rijn LC. Sediment transport, Part II: Suspended load transport. J Hydraul Eng-ASCE, 1984, 110(11): 1613-1641  
    12 张红武. 挟沙水流中含沙量沿垂线的分布规律. 泥沙研究,1997, (1): 35-41 (Zhang Hongwu. Vertical concentration distribution in sediment-laden flows. Journal of Sediment Research, 1997, (1): 35-41 (in Chinese))
    13 Umeyama M. Vertical-distribution of suspended sediment in uniform open-channel flow. J Hydraul Eng-ASCE, 1992, 118(6): 936-941  
    14 Umeyama M. Velocity and concentration fields in uniform flow with coarse sands. J Hydraul Eng-ASCE, 1999, 125(6): 653-656.  
    15 Ni JR, Wang GQ. Vertical sediment distribution. J Hydraul Eng- ASCE, 1991, 117(9): 1184-1194  
    16 倪晋仁, 周东火. 低浓度固液两相流中泥沙垂直分布的摄动理论 解释. 水利学报, 1999, 5: 1-5 (Ni Jinren, Zhou Donghuo. Interpretation of vertical sediment distribution in terms of perturbation theory. J Hydraulic Eng, 1999, 5: 1-5 (in Chinese))
    17 Lyn DA. A similarity approach to turbulent sediment-laden flows in open channels. J Fluid Mech, 1988, 193: 1-26  
    18 Wang GQ, Fu XD, Huang YF, et al. Analysis of suspended sediment transport in open-channel flows: kinetic-model-based simulation. J Hydraul Eng-ASCE, 2008, 134(3): 328-339  
    19 傅旭东, 王光谦. 用PDF 方程法分析悬沙垂线浓度分布. 力学学 报, 2003, 35(4): 393-400 (Fu Xudong, Wang Guangqian. Analysis of vertical distribution of suspended sediment using the pdf equation method. Acta Mech Sinica, 2003, 35(4): 393-400 (in Chinese))
    20 Liu QQ, Singh VP. Fluid-solid interaction in particle-laden flows. J Eng Mech-ASCE, 2004, 130(12): 1476-1485  
    21 Greimann BP, Muste M, Holly FM. Two-phase formulation of suspended sediment transport. J Hydraul Res, 1999, 37(4): 479-500  
    22 Jiang JS, Law AWK, Cheng NS. Two-phase modeling of suspended sediment distribution in open channel flows. J Hydraul Res, 2004,42(3): 273-281
    23 Toorman EA. Vertical mixing in the fully developed turbulent layer of sediment-laden open-channel flow. J Hydraul Eng-ASCE, 2008,134(9): 1225-1235  
    24 Ishii M, Hibiki T. Thermo-Fluid Dynamics of Two-phase Flow. New York: Springer, 2006
    25 Ahmadi G, Ma D. A thermodynamical formulation for dispersed multiphase turbulent flows I. basic theory. Int J Multiphas Flow,1990, 16(2): 323-340  
    26 Simonin O. Prediction of the dispersed phase turbulence in particleladen jets. gas-solid flows. American Society of Mechanical Engineers-Fluid Engineering Division, 1991, 121: 197-206
    27 Chow VT. Open-channel Hydraulics. New York: McGram-Hill Book Company, Inc., 1959
    28 Celik I, Gel A. A new approach in modeling phase distribution in fully developed bubbly pipe flow. Flow Turbul Combust, 2002,68(4): 289-311  
    29 Chapman S, Cowling TNG. The Mathematical Theory of Nonuniform Gases. 3rd edn. Cambridge: Cambridge University Press,1970
    30 Ding J, Gidaspow D. A bubbling fluidization model using kinetictheory of granular flow. Aiche J, 1990, 36(4): 523-538  
    31 Einstein HA, Chien N. Effects of heavy sediment concentration near the bed on velocity and sediment distribution. MRD Ser. 8:78, Univ. of Calif., Inst. of Eng., and U.S. Army Engrs. Div., Missouri River, Corps of Engrs., Omaha, NE, 1955
    32 陈鑫, 余锡平. 基于两相紊流模型的非平衡输沙研究. 力学学报,2012, 44(1): 65-70 (Chen Xin, Yu Xiping. A two-phase numerical model for non-equilibrium sediment transport. Chinese Journal of Theoretical and Applied Mechanics, 2010, 44(1): 65-70 (in Chinese))
    33 邵学军, 夏震寰. 悬浮颗粒紊动扩散系数的随机分析. 水利学报,1990, 10: 32-40 (Shao Xuejun, Xia Zhenhuan. Stochastic analysis of the turbulent diffusion coe cient for sediment particles. J Hydraulic Eng, 1990, 10: 32-40 (in Chinese))
    34 Csanady GT. Turbulent diffusion of heavy particles in the atmosphere. J Atmos Sci, 1963, 20(3): 201-208  2.0.CO;2" target=_blank>
  • 加载中
计量
  • 文章访问数:  2228
  • HTML全文浏览量:  51
  • PDF下载量:  908
  • 被引次数: 0
出版历程
  • 收稿日期:  2012-05-18
  • 修回日期:  2012-10-22
  • 刊出日期:  2013-01-18

目录

    /

    返回文章
    返回