| 潮汐流动等效离散的分析与计算 |
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| 引用本文： | 李玉梁,卞振举,陈嘉范,余常昭.潮汐流动等效离散的分析与计算[J].清华大学学报(自然科学版),1997(11). |
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| 作者姓名： | 李玉梁 卞振举 陈嘉范 余常昭 |
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| 作者单位： | 清华大学水利水电工程系 |
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| 摘 要： | 对等效离散的机制进行了理论分析，通过水槽试验和对珠江典型河段的天然观测，说明潮流断面平均流速和平均浓度相对于潮平均值的波动是引起等效离散的主要原因，提出了计算等效离散系数的实用方法，并对负离散问题进行了讨论。
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| 关 键 词： | 潮汐流动 等效离散 计算方法 负离散 珠江 |
Analysis and calculation of equivalent dispersion in tidal flow |
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| Li Yuliang,Bian Zhenju,Chen Jiafan,Yu Changzhao.Analysis and calculation of equivalent dispersion in tidal flow[J].Journal of Tsinghua University(Science and Technology),1997(11). |
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| Authors: | Li Yuliang Bian Zhenju Chen Jiafan Yu Changzhao |
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| Affiliation: | Li Yuliang,Bian Zhenju,Chen Jiafan,Yu Changzhao Department of Hydraulic and Hydropower Engineering,Tsinghua University,Beijing 100084 |
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| Abstract: | The mechanism of equivalent dispersion is analyzed in this paper. Based on experimental study and observational results of typical reach in the Pearl River, it is expressed that the fluctuations between sectional averaged values and tidal averaged value of velocity and concentration are the main reason which causes equivalent dispersion. The practical calculation method of equivalent dispersion coefficient is developed and the phenomenon of negative dispersion is discussed. |
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| Keywords: | tidal flow equivalent dispersion calculation method negative dispersion the Pearl River |
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