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黄河水库-维泥沙数学模型的初步研究
引用本文:曲少军,吴保生,张启卫,韩巧兰.黄河水库-维泥沙数学模型的初步研究[J].人民黄河,1994(1).
作者姓名:曲少军  吴保生  张启卫  韩巧兰
作者单位:黄委会水科院
摘    要:根据黄河中下游的水沙特点和水库泥沙的冲淤规律,建立了黄河水库-维泥沙冲淤数学模型。模型在动床阻力、水流挟沙力、冲淤量的横向分配以及水流、泥沙控制方程的离散、求解等方面进行了探讨,用三门峡水库漳关以下库区1974~1988年的实测水沙系列对模型进行了验证计算,结果表明,模型在冲淤总量、冲淤过程以及纵向冲淤分布等方面计算值与实测值均符合良好。应用模型计算三门峡水库在四种不同运用方案下库区的冲淤情况,计算结果基本合理。

关 键 词:河床变形  数学模型  水流挟沙力  床沙级配  有限差分法

Preliminary study on One-Dimensional Mathematical Model of Reservoirs on the Yellow River
Qn Shaojun et al..Preliminary study on One-Dimensional Mathematical Model of Reservoirs on the Yellow River[J].Yellow River,1994(1).
Authors:Qn Shaojun
Affiliation:Institute of Hydraulic Research of YRCC. Zhengzhou. 450003
Abstract:t builds one-dimensional mathematical model of erosion and deposition of reservoirs on theYellow River in accordance with the characteristics of water and sediment and law of erosion anddeposition of reservoirs on the middle and lower reaches of the Yellow River. The model discussesthe aspects of resistance to movable bed, sediment carrying capacity of flow, transverse distribunon of erosion and deposition and dispersion and solution of equation of flow and sediment control.It also conducts verified calculation by using the observed runoff-and isediment series of1974-1988 period and the results show that the total volume of erosion and deposition, process oferosion and deposition and vertical distribution of erosion and deposition all tally wity the observed value. To calculate erosion and deposition in the Sanmenxia Reservoir area with four different operational schemes by using the model.the results are basically reasonable.
Keywords:river bed deformation  mathematical model  sediment carrying capacity of flow  gradation of bed load  reservoir  Yellow River
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