| 粗细化过程中的非均匀沙起动流速 |
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| 引用本文： | 刘兴年,曹叔尤,黄尔,彭清娥,李昌志.粗细化过程中的非均匀沙起动流速[J].泥沙研究,2000(4):10-13. |
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| 作者姓名： | 刘兴年 曹叔尤 黄尔 彭清娥 李昌志 |
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| 作者单位： | 四川大学高速水力学国家重点实验室,成都,610065 |
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| 基金项目： | 国家自然科学基金和水利部联合资助的国家自然科学基金重大项目! ( 59890 2 0 0 ) |
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| 摘 要： | 本文对处于淤交替（粗化细化）过程下的宽级配非均匀沙起动特点进行了分析，文中首先探讨了均匀沙起动流速的表达方式，然后引入非均匀沙暴露高度和泥沙粒径的关系和研究成果，导出了宽级配非均匀沙分级起动流速的计算公式，通过实验资料检验符合良好。
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| 关 键 词： | 起动流速 非均匀沙 粗化过程 泥沙粒径 隐暴作用 |
Critical Velocity of Non-uniform Sediment in the Armoring Process |
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| Liu Xiangnian,Cao Shuyou,Huang Er,Peng Qinge,Li Changzhi.Critical Velocity of Non-uniform Sediment in the Armoring Process[J].Journal of Sediment Research,2000(4):10-13. |
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| Authors: | Liu Xiangnian Cao Shuyou Huang Er Peng Qinge Li Changzhi |
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| Abstract: | In this paper, the incipient motion characteristics of sediment with a wide distribution under the condition of armoring process of bed material are discussed. The formula of critical velocity is derived. The relationship of exposure degree and bed material diameter and equivalent diameter of non-uniform sediment are introduced to determine critical velocity of sediment with a wide size distribution, which agrees with the experimental data well. |
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| Keywords: | critical velocity non-uniform sediment armoring process |
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