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一维河网非恒定水沙数学模型研究
引用本文:邓金运. 一维河网非恒定水沙数学模型研究[J]. 水科学与工程技术, 2006, 0(6): 1-4
作者姓名:邓金运
作者单位:武汉大学,水资源与水电工程国家重点实验室,武汉,430072
摘    要:在已有研究的基础上,建立了适合复杂区域的河网非恒定流水沙数学模型.建立过程中考虑到计算精度和计算速度的要求,水流求解采用汊点分组方法,同时本模型选用了较符合河网泥沙运动的汊点分沙模式.最后通过长江中下游长河段的水沙运动模拟表明,建立的河网水沙数学模型能够满足实际工程需要.

关 键 词:河网  非恒定流  水沙数学模型  河床冲淤
文章编号:1672-9900(2006)06-0001-04
收稿时间:2006-09-18
修稿时间:2006-09-18

Study on 1D model of unsteady flow and sediment of river networks
DENG Jin-yun. Study on 1D model of unsteady flow and sediment of river networks[J]. Water Sciences and Engineering Technology, 2006, 0(6): 1-4
Authors:DENG Jin-yun
Abstract:Based on the existing studies, the unsteady flow anti sediment model of river networks is presented in this paper. A junction group method, which is based on gradation method, is applied to solve the flow matrix equations. And the reas,mable style of sediment diversion at the junction nodes is also adopted. It is shown by the field simulation in the middle and lower Yangtze River that this model can be applied in wide practice and is worth recommending.
Keywords:river networks   unsteady flow   flow and sediment model   erosion and deposition
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