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浙江大学学报(工学版)
浙江大学学报(工学版)
土木工程     
水库细颗粒淤积物的重力驱动流动
周建银1, 邵学军1, 江磊1, 假冬冬2
1. 清华大学 水沙科学与水利水电工程国家重点实验室,北京 100084；2. 南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏 南京 210029
Gravity-driven transport of fine grained reservoir sediments
ZHOU Jian-yin1, SHAO Xue-jun1, JIANG Lei1, JIA Dong-dong2
1. State Key Laboratory of Hydro-science and Engineering, Tsinghua University, Beijing 100084, China; 2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China
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摘要：

为了模拟水库细颗粒泥沙的淤积分布和形态,参考河口浮泥的模拟方法,建立水库淤积物在自重驱动下发生的浮泥运动、固结的简化一维动力学模型,在空间上采用交错网格的有限体积法,在时间上采用二阶龙格库塔方法，以三峡坝前典型断面淤积形态为例进行试验性模拟；将一维水沙输移数值模型与所建模型结合,较成功地模拟了三峡坝前段的淤积总量和分布.结果表明：该模型能够模拟水库细颗粒淤积物的流动和汇集过程；淤积物的固结速率对淤积分布影响较大.模拟结果从动力学机理上解释了水库细颗粒泥沙淤积形态的成因.
Abstract:

To simulate the distribution and form of fine grained reservoir sediments, consulting to the methods used in modelling estuarine fluid mud, a one-dimensional dynamic model of gravity-driven fluid mud transport for reservoir sediments was established. The model was solved based on staggered grids and finite volume method. The scheme of time processing was the two-order Runge-Kutta format. This model was firstly tested by calculation the gathering of sediments at a typical section in dam area of the Three Gorges Reservoir (TGR). Then, combined with a one-dimensional hydro-sediment transport model, the gross and distribution of sediments in the dam area of the TGR were successfully simulated. Results indicate the capability of present model in modeling the flowing and gathering processes of reservoir sediments. The distribution of sediments is sensitive to solid parameters. Simulation results dynamically explain the form of fine grained reservoir sediments.
出版日期: 2014-12-01
:  TV 145  
基金资助:

国家科技支撑计划资助项目(2012BAB05B01)；国家自然科学基金重点资助项目(51039004)
通讯作者: 邵学军,男,教授     E-mail: shaoxj@tsinghua.edu.cn
作者简介: 周建银（1987—）,男,博士生,从事水力学及河流动力学方面的研究. E-mail: zhoujy09@mails.tsinghua.edu.cn
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引用本文:

周建银, 邵学军, 江磊, 假冬冬. 水库细颗粒淤积物的重力驱动流动[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.12.021.

ZHOU Jian-yin, SHAO Xue-jun, JIANG Lei, JIA Dong-dong. Gravity-driven transport of fine grained reservoir sediments. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.12.021.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.12.021    或    http://www.zjujournals.com/eng/CN/Y2014/V48/I12/2254

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