| 漳卫新河闸下淤积一维数学模型研究及应用 |
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| 引用本文： | 胡华锋,许足怀,张华庆.漳卫新河闸下淤积一维数学模型研究及应用[J].水道港口,2005,26(3):149-153. |
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| 作者姓名： | 胡华锋 许足怀 张华庆 |
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| 作者单位： | 长沙理工大学河海工程学院,长沙,410076;湖南省航务管理局,长沙,410050;交通部天津水运工程科学研究所,天津,300456 |
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| 摘 要： | 建立了漳卫新河河道一维水沙数学模型,采用Preissmann四点隐式差分格式离散非恒定水流方程,以及交错网格显式差分格式离散泥沙运动方程。该模型对辛集闸闸下———河口段在大潮期间的潮位、流速和含沙量进行了验证,其结果与实测资料基本相符。依据该模型,对未来20 a的河床冲淤变化和演变发展趋势作了预测。
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| 关 键 词： | 非恒定流 泥沙数学模型 Preissmann四点隐式格式 河道淤积 |
| 文章编号： | 1005-8443（2005）03-0149-05 |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2005年3月8日 |
Study on 1-D Sediment Silting Model of Dowstream Reach of Barrage in Zhangweixin River and Its Application |
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| HU Hua-feng,XU Zu-huai,ZHANG Hua-qing.Study on 1-D Sediment Silting Model of Dowstream Reach of Barrage in Zhangweixin River and Its Application[J].Journal of Waterway and Harbour,2005,26(3):149-153. |
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| Authors: | HU Hua-feng XU Zu-huai ZHANG Hua-qing |
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| Institution: | 1. Changsha Science and Engineering Universily, Changsha 410076, China; 2. Hunan Provicial Navigation Administration Bureau, Changsha 410050, China; 3. lianjin Research Institute of Water Transport Engineering, Tianjin 300456, China |
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| Abstract: | One mathematical model for sediment transport of Zhangweixin River is established, the method of dissipate equation of current movement and sediment transport is Pressimann four- point implicit difference and interlaced grid explicit difference respectively. Tide level, velocity and sediment concentration of downstream reach of Xinji barrage during the period of spring tide has been verified by this model, the calculated result is almost consistent with the measured one. Moreover the trend of development of scour and silting of the river bed in the coming 20 years is predicted on the basis of the model. |
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| Keywords: | unsteady flow mathematical model for sediment transport Preissmann four-point implicit difference channel deposition |
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