| 利用沙波运动估算推移质输沙率的误差分析 |
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| 引用本文： | 青平,唐郑亮.利用沙波运动估算推移质输沙率的误差分析[J].浙江海洋学院学报(自然科学版),2007,26(2):179-182. |
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| 作者姓名： | 青平 唐郑亮 |
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| 作者单位： | 1. 南京大学海岸与海岛开发教育部重点实验室,江苏南京,210093;南京大学海岸海洋科学系,江苏南京,210093;海军91561部队,广东广州,510320
2. 南京大学海岸海洋科学系,江苏南京,210093 |
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| 摘 要： | 通过沙波运动估算推移质输沙率的方程分析,论证误差的主要来源不是推移质泥沙和悬移质泥沙之间的交换,而是由波谷附近涡流区的逆向推移造成的。涡流区的长度决定着误差的大小和正负。因此误差的大小和沉积物粒度没有直接的关系,但是和流速有关。
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| 关 键 词： | 沙波 推移质输沙率 悬移质 |
| 文章编号： | 1008-830X（2007）02-0179-04 |
| 收稿时间： | 2006-11-01 |
| 修稿时间： | 2006-11-01 |
The Analysis on the Error of the Equation of Bed Load Discharge Based on the Movement of Sand Waves |
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| QING Ping,TANG Zheng-liang.The Analysis on the Error of the Equation of Bed Load Discharge Based on the Movement of Sand Waves[J].Journal of Zhejiang Ocean University(Natural Science Edition),2007,26(2):179-182. |
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| Authors: | QING Ping TANG Zheng-liang |
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| Institution: | 1. The Laboratory of Coastal and Island Development, Ministry of Education, Nanjing 210093; 2. The Department of Coastal Ocean Science, Nanjing University, Nanjing 210093; 3. Unit 91561 of China Navy, Guangzhou 510320, China |
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| Abstract: | On discussing the equation of bed load discharge based on the movement of sand waves,the exchange between suspended sediment and bed load is not considered as an important source of the error of the equation,which it was thought to be the anti-current at the back ward position of the though of sand waves,whose length determines the error.Thus,the error of the equation depends on the current velocity but not on the size of sediment particles. |
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| Keywords: | sand wave bed load discharge suspended sediment |
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