| 河流网上泥沙冲淤动力学模型的建立与模拟 |
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| 引用本文： | 郝睿,张金锋,霍杰,王旭明. 河流网上泥沙冲淤动力学模型的建立与模拟[J]. 宁夏大学学报(自然科学版), 2008, 29(4) |
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| 作者姓名： | 郝睿 张金锋 霍杰 王旭明 |
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| 作者单位： | 宁夏大学,物理电气信息学院,宁夏,银川,750021;淮北煤炭师范学院,物理电子信息学院,安徽,淮北,235000 |
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| 基金项目： | 国家自然科学基金，教育部跨世纪优秀人才培养计划，宁夏大学校科研和教改项目 |
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| 摘 要： | 基于不同级别支流的汇流建立了枯水期河流网上的泥沙冲淤动力学模型.计算结果显示稳态下泥沙冲淤量在河段上的分布服从指数标度规律.利用黄河枯水期的实测数据与计算结果作对比,证明该模型能够模拟自然河道的冲淤状态,且可以预知一定条件下的稳态.
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| 关 键 词： | 河流网 冲淤变化 动力学模型 |
Establishment and Simulation of the Sediment Transport Dynamic Model in A River Network |
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| Hao Rui,Zhang Jinfeng,Huo Jie,Wang Xuming. Establishment and Simulation of the Sediment Transport Dynamic Model in A River Network[J]. Journal of Ningxia University(Natural Science Edition), 2008, 29(4) |
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| Authors: | Hao Rui Zhang Jinfeng Huo Jie Wang Xuming |
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| Abstract: | Based on the confluences of the different rank streams,a dynamical model of sediment transport on river network is proposed.The calculated result suggests a scaling law dominating the distribution of sediment souring-deposition,which shows the dependence of the souring-deposition exponentially on the number of the segments of the branch.Comparing between the observed data of the Yellow River in some lower-water periods and calculative results,it is proved that the model can simulate the scouring-deposition states of the natural river.Furthermore,the model can predict steady states under the definite conditions. |
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| Keywords: | river network scouring-deposition dynamical model |
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