长江科学院院报 ›› 2016, Vol. 33 ›› Issue (2): 1-9.DOI: 10.11988/ckyyb.20140855

• 江湖泥沙与治理 •    下一篇

黏性泥沙絮凝研究进展

柴朝晖1a,2a,2b, 李昊洁1b, 王茜1a, 杨国录3, 刘同宦1a   

  1. 1.长江科学院 a.河流研究所; b.科研计划处,武汉 430010;
    2.清华大学 a.土木水利学院; b.水沙科学与水利水电工程国家重点实验室,北京 100084;
    3. 武汉大学 水资源与水电工程科学国家重点试验室,武汉 430072
  • 收稿日期:2014-10-08 出版日期:2016-02-01 发布日期:2016-02-17
  • 作者简介:柴朝晖(1986-),男,河北魏县人,工程师,博士,主要从事黏性泥沙运动研究工作,(电话)13638609582(电子信箱)a3515522@126.com。
  • 基金资助:

    国家自然科学基金项目(51339001);长江科学院中央级公益性科研院所基本科研业务费资助项目(CKSF2016010/HL)

Advances in Research of Cohesive Sediment Flocculation

CHAI Zhao-hui1,3,4, LI Hao-jie2, WANG Qian1, YANG Guo-lu5, LIU Tong-huan1   

  1. 1.River Department, Yangtze River Scientific Research Institute, Wuhan 430010, China;
    2.Planning and Project Management Department, Yangtze River Scientific Research Institute, Wuhan 430010,China;
    3.School of Civil Engineering, Tsinghua University, Beijing 100084, China;
    4.State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;5.State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
  • Received:2014-10-08 Online:2016-02-01 Published:2016-02-17

摘要:

黏性泥沙颗粒的絮凝特性表现出与粗颗粒泥沙迥异的物理及输移特性,因此黏性泥沙絮凝是河流海洋泥沙理论研究中的热点之一。总结了黏性泥沙絮凝在试验研究和数学模型方面的研究成果,介绍了最新的相关研究进展,并分析了现有研究中存在的问题。认为目前存在的主要问题有:①有关黏性泥沙的试验研究以单因素影响试验为主,缺少多因素影响研究;②对泥沙絮团的三维结构形态研究不足;③相关数学模型只能描述定性规律。今后应在黏性泥沙相似准则、多因素影响试验、絮团微观结构观测仪器开发、大尺度三维絮凝数值模拟等方面加强研究。

关键词: 黏性泥沙, 絮凝试验, 数学模型, 分形, 研究进展

Abstract:

Because of flocculation character of cohesive sediment particle, the particle is different from coarse sediment particle in physical and transport properties. Therefore, the flocculation of cohesive sediment is a hotspot in the theoretical research of river and ocean sediment. In this paper, we summarize research results of cohesive sediment flocculation according to experiments and mathematical models, and introduce advances in the research up to date, as well as existing problems in these studies. There are 3 problems should be paid attention to: 1) experimental studies are mainly focused on single influencing factor, lack of multi-factor research; 2) pattern researches on 3-D structure of sediment flocs are not enough; 3) relevant mathematical models can only describe qualitative laws, rather than quantitative laws. Finally, we should strengthen some aspects in future study on the flocculation of cohesive sediment, such as similarity criteria, multi-factor experiment research, and 3D simulation on large scale.

Key words: cohesive sediment, flocculation experiment, mathematical model, fractal, advances in research

中图分类号: