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flood routing     
相关语句
  洪水演进
     Using flood routing parameters of the present river course, sixty-threeoperation plans were studied' These plans were composed by hydrographs of three typical years(which were 1954.1958 and 1982) with peak flow rates of 15000m ̄3/s. 18000m ̄3/s and 22000m ̄3/sat Huayuankou hydrologic station respectively.
     这里选择了1954、1958、1982年三种典型年,花园口洪峰分别为15000、18000、22000m ̄3/s三个量级的洪水,组成63种运用方案,使用现行河道洪水演进参数进行了分析研究。
短句来源
     An Analysis of the Model & Algorithm for River Boundary Searching in the Flood Routing Simulation System
     洪水演进仿真系统河道边界搜索模型及算法分析
短句来源
     Technology and Object Analysis of Flood Routing Simulation System Development
     洪水演进模拟仿真系统研制的技术和目标分析
短句来源
     Computational Method of Flood Routing in Long Watercourse with Compound Cross-section
     复式断面长河道洪水演进计算方法
短句来源
     Universal algorithm for river basin flood routing model
     流域洪水演进模型通用算法研究
短句来源
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  洪水演算
     Radial basis function-neural network model for channel flood routing
     河道洪水演算的径向基函数神经网络模型
短句来源
     Two-Dimensional Flood Routing Method
     二维洪水演算方法
短句来源
     Channel Flood Routing Model of Artificial Neural Network
     河道洪水演算的神经网络模型
短句来源
     Application Research of Flood Routing Method
     河道洪水演算方法应用研究
短句来源
     Advances of Research in Diffusion-wave Flood Routing
     扩散波洪水演算研究进展
短句来源
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  洪水运行
     Study on the Law of Flood Routing in the Wide Reach in the Lower Yellow River
     黄河下游宽河段洪水运行规律研究
短句来源
  洪水演算
     Radial basis function-neural network model for channel flood routing
     河道洪水演算的径向基函数神经网络模型
短句来源
     Two-Dimensional Flood Routing Method
     二维洪水演算方法
短句来源
     Channel Flood Routing Model of Artificial Neural Network
     河道洪水演算的神经网络模型
短句来源
     Application Research of Flood Routing Method
     河道洪水演算方法应用研究
短句来源
     Advances of Research in Diffusion-wave Flood Routing
     扩散波洪水演算研究进展
短句来源
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      flood routing
    A flood routing model based on a non-linear diffusion-convection equation is presented.
          
    Unlike in most other papers devoted to this subject, the flood routing equations are nonlinear.
          
    Short-term flood routing in reserve storages of a stream
          
    There are a variety of techniques for estimating the parameters x and K of the Muskingum method of flood routing.
          
    Approximate Methods for the Estimation of Muskingum Flood Routing Parameters
          
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    This paper consists of four parts as follows: 1. the flood routing of outflow for basin, 2. the genetic unit-hydrograph, 3. the relation between the three assumptions on unithydrograph and the genetic unit-hydrograph and 4. the calculation of unit-hydrodraph for basin which Iacks data. In this paper the study of the genetic unit-hydrograph is based upon the genetic formulat of runoff founded by M. A. velikanoff and with the help of Muskingum channel storage equation. The calculation of unit-hydrographs...

    This paper consists of four parts as follows: 1. the flood routing of outflow for basin, 2. the genetic unit-hydrograph, 3. the relation between the three assumptions on unithydrograph and the genetic unit-hydrograph and 4. the calculation of unit-hydrodraph for basin which Iacks data. In this paper the study of the genetic unit-hydrograph is based upon the genetic formulat of runoff founded by M. A. velikanoff and with the help of Muskingum channel storage equation. The calculation of unit-hydrographs by this method only needs three parameters and it is possible to find out the unit-hydrograph without records of hydrometrie observation of river discharge.

    本文包括如下四个方面的问题:(一) 流域出流洪水演算,(二) 流域成因单位线,(三) 成因单位线与单位线基本假定的关系,(四) 无资料地区单位綫的推求。四个问题结成一体,以成因单位线为核心。文中成因单位綫公式的推导系以維虽康诺夫的逕流成因公式为基礎,并借用了馬斯京貢(Mnskingum)槽蓄曲线方程式。使用上述公式計算单位线时只需要三个参数,可无需实测流量記录。上述公式又可用來推求无资料地区的单位綫。

    The quantity of sediment carried by flood in rivers with heary concentration is enormous , and large amount of sediment will deposit in reservoirs in the Period of impounding flood , The Process of aggradation and degradation in reservoir exerts influence on flood routing through reservoir. As comparedwith flood routing through clear water reservoir, the outflow from reservoir are influenced in three asoects. decreasing of flood volume, shortening of duration and change of hydrograph. Therefore,...

    The quantity of sediment carried by flood in rivers with heary concentration is enormous , and large amount of sediment will deposit in reservoirs in the Period of impounding flood , The Process of aggradation and degradation in reservoir exerts influence on flood routing through reservoir. As comparedwith flood routing through clear water reservoir, the outflow from reservoir are influenced in three asoects. decreasing of flood volume, shortening of duration and change of hydrograph. Therefore, the impact of aggradation and degradation in reservoir must be taken into account in the computation of flood routing through reservoirs built on rivers with heavy concentration.Three equations are included in the calculation, they are the equati on of outflow of reservoir, equation of sediment transportation and equation of distribution of deposition and erosion in reservoir, The equation of outflow is the Principal equation, and the equation of continuity of sediment transportis being used. Erom which the relationis obtained.

    多沙河流的水库调洪计算,不同于常用的清水河流的水库调洪,主要区別在于库区的泥沙淤积和冲刷对出库的洪峰、洪量及泄空时间均有影响。本文根据挟沙水流平衡方程及水库输沙关系式,提出考虑泥沙冲淤的多沙河流水库调洪计算方法,经用黄河三门峡与二级支流蒲河巴家咀水库的实际资料验证,获得较好的结果,可为多沙河流水库调洪演算应用。

    The general method used in flood routing is stream flow routing, but it cannot be used in forecasting. The corresponding peak stage method Can predict the downstream peak stage, however it is difficult to rout the stage hydrograph. In light of the relation of stage rise versus water surface fall, three methods for forecasting the donstream stage hydragraph are suggested as follows.

    河道洪水演算一般用流量演算法,但不能用于预报。而相应洪峰水位法只适用于预报洪峰水位,很难预报水位过程。本文根据河相关系涨差比落差的原理,提出三种预报水位过程的方法。(1) 据实测记录绘制下游站涨差与落差的关系曲线,用于预报。(2)相应涨差法:以上游站的涨差与下游站后一:时段的相应涨差建立关系,用于预报。(3)加权水位法:建立加权水位关系。以时段初的上、下断面水位预报时段末的下断面水位。

     
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