| 珠江河口的能量传播和能量耗散 |
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| 引用本文： | 刘欢,吴超羽,包芸.珠江河口的能量传播和能量耗散[J].热带海洋学报,2011(3). |
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| 作者姓名： | 刘欢 吴超羽 包芸 |
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| 作者单位： | 中山大学近岸海洋科学与技术研究中心;中山大学环境科学与工程学院;中山大学工学院力学系; |
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| 基金项目： | 国家自然科学基金项目(41006050、40676056、10772204); 中国博士后科学基金项目(20090460799) |
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| 摘 要： | 建立了包括河网区、河口湾区和近海水域的ECOMSED-3D数学模型,计算了珠江河口的能量传播和能量耗散特征。研究表明:1)珠江河口能量来源受潮汐和径流共同作用,季节性变化明显;2)珠江河口存在若干高能耗区,其单位面积能耗率比上下游河段平均能耗率高1—2个量级,它们和一定的动力结构与地貌单元相联系。根据地貌特征和消能特点,可以划分为以下3种类型:门的高能耗区、曲折河段高能耗区和分汊汇流高能耗区。
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| 关 键 词： | 能量通量 能量转化 能量耗散 数值模拟 珠江河口 |
Energy flux and dissipation in the Pearl River Estuary |
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| LIU Huan,WU Chao-yu,BAO Yun .Research Center of Coastal Ocean Science , Technology,Sun Yat-sen University,Guangzhou ,China,.School of Envi-ronmental Science , Engineering.Energy flux and dissipation in the Pearl River Estuary[J].Journal of Tropical Oceanography,2011(3). |
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| Authors: | LIU Huan WU Chao-yu BAO Yun Research Center of Coastal Ocean Science Technology Sun Yat-sen University Guangzhou China School of Envi-ronmental Science Engineering |
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| Institution: | LIU Huan1,2,WU Chao-yu1,BAO Yun3 1.Research Center of Coastal Ocean Science and Technology,Sun Yat-sen University,Guangzhou 510275,China,2.School of Envi-ronmental Science and Engineering,3.Department of Applied Mechanics and Engineering |
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| Abstract: | A three-dimensional numerical model that covers the river network,estuary and coastal region is developed to study the energy flux and characteristic of energy dissipation.The results are as follows.(1) The energy source in the Pearl River Estuary(PRE) is mainly from tides and freshwater,which have obvious seasonal variation.(2) There are typical hotspots where energy dissipation is higher by 1?2 orders than those in the immediate upstream and downstream sections in the PRE.This phenomenon is linked with fl... |
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| Keywords: | energy flux energy conversion energy dissipation numerical simulation Pearl River Estuary |
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