| 长江口流速和悬沙垂线规律研究 |
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| 引用本文： | 于东生,田淳,严以新.长江口流速和悬沙垂线规律研究[J].三峡大学学报(自然科学版),2003,25(5):421-424. |
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| 作者姓名： | 于东生 田淳 严以新 |
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| 作者单位： | 1. 河海大学,海岸及海洋工程研究所,南京,210098
2. 长江水利委员会,长江口水文水资源勘测局,江苏,太仓,215431 |
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| 基金项目： | 国家自然科学基金资助项目(50079003) |
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| 摘 要： | 根据长江口的实测水流流速、悬沙含量及其级配资料，分析了它们变化的规律性，并用通用公式进行了验证．从研究结果可以看出：实测资料与现有理论和经验公式的拟合程度较好；在相对水深η=0.4处的流速、悬沙含量及其级配与垂线平均值基本一致，因而可用η=0.4处的流速u0.4与含沙量S0.4来计算单宽输沙率．
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| 关 键 词： | 长江口 流速 含沙量 颗粒级配 垂线分布 |
| 文章编号： | 1007-7081(2003)05-0421-04 |
| 修稿时间： | 2003年4月18日 |
Research on Vertical Distributions of Velocity and Suspended Sediments in Yangtze River Estuary |
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| Yu Dongsheng Tian Chun Yan Yixin.Research on Vertical Distributions of Velocity and Suspended Sediments in Yangtze River Estuary[J].Journal of China Three Gorges University(Natural Sciences),2003,25(5):421-424. |
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| Authors: | Yu Dongsheng Tian Chun Yan Yixin |
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| Abstract: | Based on the data obta.ined from the survey of the Yangtze River Estuary,the vertical distributions of velocity,suspended sediment and sediment particle gradation are studied. Varying regularity of the surveyed data is analyzed;and coherent extent for the existing theories and experimental formulas to the surveyed data is verified. The results demonstrate that the investigating data is accurate. |
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| Keywords: | Yangtze River Estuary velocity profile particle gradation vertical suspended sediment distribution |
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