| 泥沙起动条件及机理的非线性研究 |
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| 引用本文： | 王协康,敖汝庄,方铎. 泥沙起动条件及机理的非线性研究[J]. 长江科学院院报, 1999, 16(4): 39-41 |
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| 作者姓名： | 王协康 敖汝庄 方铎 |
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| 作者单位： | 四川联合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： | 三峡工程泥沙问题研究项目，国家自然科学基金委员会-水利部联合资助项目 |
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| 摘 要： | 分析了单颗粒、均匀沙及非均匀沙的起动现象及其机理，认为泥沙的起动属于突变论研究的范畴。从泥沙起动所遵循起动条件的力学规律出发，导出泥沙起动条件方程。在此基础上，利用尖点突变性质对各种泥沙起动现象及机理进行了描述和说明。
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| 关 键 词： | 非线性 泥沙起动 突变论 尖点突变 |
Nonlinear Study on Sediment Incipient motion Condition and Its Mechanism |
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| Wan Xiekang,Ao Ruzhuang,Fang Duo. Nonlinear Study on Sediment Incipient motion Condition and Its Mechanism[J]. Journal of Yangtze River Scientific Research Institute, 1999, 16(4): 39-41 |
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| Authors: | Wan Xiekang Ao Ruzhuang Fang Duo |
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| Abstract: | According to the analysis of incipient starting phenomenon and mechanism of single particle sand, uniform and non uniform sediments, the sediment incipient motion belongs to the research category of catastrophe theory. Using the dynamic laws of sediment incipient motion, an equation of incipient starting of sediment has been derived. And then, the incipient motion phenomenon and mechanism of different kinds of sediments are explained by the catastrophe characteristic of tip point. The result is satisfactory. |
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| Keywords: | nonlinear sediment incipent motion catastrophe theory tip point catastrophe |
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