| 粗化过程中的推移质输沙率 |
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| 引用本文： | 孙志林,孙志锋.粗化过程中的推移质输沙率[J].浙江大学学报(理学版),2000,34(4):449-453. |
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| 作者姓名： | 孙志林 孙志锋 |
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| 作者单位： | [1]浙江大学海洋科学与工程系 [2]浙江大学电气工程学院 |
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| 基金项目： | 国家自然科学基金!(5 97790 10 ) |
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| 摘 要： | 将床面可动沙颗粒数视为一种随机过程，首先从理论上建立起冲刷粗化过程中输沙率变化的微分方程，据以解出输沙率随时间呈指数衰减规律变化的理论公式，与部分实验资料的比较表明，公式在一定程度上与实际一致，从而将冲刷粗化实验所获得的感性认识予以理论概括。
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| 关 键 词： | 非均匀沙 推移质输沙率 粗化过程 随机过程 河流 |
| 修稿时间： | 1999-11-30 |
Transport rate of bedload in an armoring process. |
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| SUN Zhi\|lin\ ,SUN Zhi\|feng\.Transport rate of bedload in an armoring process.[J].Journal of Zhejiang University(Sciences Edition),2000,34(4):449-453. |
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| Authors: | SUN Zhi\|lin\ SUN Zhi\|feng\ |
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| Institution: | SUN Zhi\|lin\ 1,SUN Zhi\|feng\ 2 |
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| Abstract: | The differential equation for transport rate of bedload in an armoring process is theoretically developed by considering the number of movable particles on the bed\|surface as a stochastic process. A theoretical relation of transport rate to the probability of incipient motion of nonuniform sediment is solved from the differential equation. According to this relation transport rate decreases exponentially with time. Comparison of the theory with experimental data shows a good agreement. Therefore, transport rate in the armoring process is theoretically described for the first time. |
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| Keywords: | nonuniform sediment transport rate of bedload armoring process non\|equilibrium transport stochastic process |
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