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LEI Zheng-xiong, JIANG Yan. Application of the Preissmann Implicit Scheme to Flow Computation for Reticular and Branched River Channels[J]. Advances in Water Science, 2001, 12(4): 485-490.
Citation: LEI Zheng-xiong, JIANG Yan. Application of the Preissmann Implicit Scheme to Flow Computation for Reticular and Branched River Channels[J]. Advances in Water Science, 2001, 12(4): 485-490.

Application of the Preissmann Implicit Scheme to Flow Computation for Reticular and Branched River Channels

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  • Received Date: September 16, 2000
  • Revised Date: November 17, 2000
  • River channels are often connected each other to form a reticular river channel or divided into two or more branches in plain areas.The numerical methods based on the Preissmann implicit scheme for flow simulation in these channels are discussed in this paper.After the derivation of the Saint-Venant Equations,water level and discharge of each cross-section are derived by the recursion method and the principle of water balance.The method is proved to be satisfactory when applied to the flow calculation in reach from Jiangyin to qnglonggang and Yanglin in downstream of Yangtze River.
  • [1]
    庾维德,赵小霞,黄菊.明渠一维不恒定流计算(隐式)程序包MYBC/Y1及应用[A].水文水资源论文选(1978-1985)[C].北京:水利电力出版社,1987,437-445.
    [2]
    Mahmood K, Yevjevich V. Unsteady Flow in Open Channels[M]. Water Resources Publications, 1975.

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