| 河道洪水演进的二维水流数学模型 |
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| 引用本文： | 李大鸣. 河道洪水演进的二维水流数学模型[J]. 天津大学学报(自然科学与工程技术版), 1998, 31(4): 439-446 |
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| 作者姓名： | 李大鸣 |
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| 作者单位： | 泉州华侨大学，天津大学 |
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| 摘 要： | 提出了河道洪水演进二维水流数学模型的计算模拟方法，考虑了上，下游洪水边界的控制条件及糙率随河道流量变化的调查并与采用不同尺度流、波分离方法得到的一维洪水波演进的理论解进行了比较。
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| 关 键 词： | 洪水演进 数学模型 二维水流 河道 水文预报 |
A 2 D NUMERICAL MODEL OF PROPELLING FLOOD IN THE RIVER |
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| Li Daming. A 2 D NUMERICAL MODEL OF PROPELLING FLOOD IN THE RIVER[J]. Journal of Tianjin University(Science and Technology), 1998, 31(4): 439-446 |
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| Authors: | Li Daming |
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| Abstract: | In this paper,a 2 D numerical model of propelling flood in the river was proposed.The control conditions on both up boundary and down boundary and the roughness varying with the river discharges were considered.The calculated result in flume experiments is agreeable with the theory solutions of 1 D flood waves by the method of multiple scales.The model was applied to simulate the propelling flood in Yongdinghe River from Lugoqiao to Jinmenzha.Reasonable agreement is found between the measured data and the model results. |
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| Keywords: | propelling flood numerical model roughness multiple scales |
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