| 李德玉,吴作平,杨国录,王海波,甘明辉,涂劲,张艳红.荆江—洞庭湖水沙数学模型研究[J].水利学报,2003,34(7): |
| 荆江—洞庭湖水沙数学模型研究 |
| Mathematical model for flow sediment transportation of Jingjiang River Dongting Lake network |
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| DOI： |
| 中文关键词: 河网 概化 节点 数学模型 |
| 英文关键词: river lake network system generalization flow sediment transportation numerical model |
| 基金项目: |
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| 摘要点击次数: 1979 |
| 全文下载次数: 105 |
| 中文摘要: |
| 在对复杂的荆江—洞庭湖水系进行概化的基础上，根据其中各节点和湖泊的实际情况，建立了对整个荆江—洞庭湖水系进行模拟计算的复杂河网水沙数学模型。采用1996年的相关资料进行了验证，结果表明，模型计算值与实测值吻合较好，说明本文对荆江—洞庭湖复杂边界条件的概化，特别是对湖泊调蓄作用的处理是比较符合实际情况的，模型可以模拟边界条件复杂的河网。运用该模型，可以计算出整个荆江—洞庭湖区域的洪水演进、泥沙淤积和河床变形情况，可供防洪调度以及江湖治理部门参考。 |
| 英文摘要: |
| On the basis of generalized network a mathematical model for simulating the flow sediment transportation of Jingjiang River Dongting Lakenetwork is established. In the model, the regulation effect of lake on river network is taken into account and equations of discharge, sediment and energy conservation are established for every inflow outflow node. The validity of the model is verified by the observation data in 1996 Good agreement between calcuation and observation data is attained .The model is applied to predict the flood propagation, sedimentation transport and river erosion of the whole river lake network system. |
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