| 珊瑚岛礁淡水透镜体的数值模拟 |
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| 引用本文： | 周从直,方振东,梁恒国,赵广建,陈灌春,侯正昌,李决龙.珊瑚岛礁淡水透镜体的数值模拟[J].海洋科学,2004,28(11):77-80. |
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| 作者姓名： | 周从直 方振东 梁恒国 赵广建 陈灌春 侯正昌 李决龙 |
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| 作者单位： | 1. 后勤工程学院,建筑与环境工程系,重庆,400041
2. 海后营房部,北京,100842 |
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| 基金项目： | 总后勤部基金项目(总后[1998]后司字第86号) |
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| 摘 要： | 论述了珊瑚岛礁地下淡水资源-淡水透镜体的形成、特征和影响因素。用质量守恒，Darey定律和Ghyben-Herzbeg关系导出了淡水透镜体的数学模型，用有限差分法计算了西沙永兴岛淡水透镜体的包络面，与实测值比较误差在3％～15％之间。为科学开发西沙地下淡水资源提供了可靠的数学工具。
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| 关 键 词： | 透镜体 珊瑚岛 地下淡水资源 实测值 质量守恒 形成 有限差分法 数学工具 |
| 文章编号： | 1000-3096(2004)11-0077-04 |
| 收稿时间： | 2004/4/29 0:00:00 |
| 修稿时间： | 2004年4月29日 |
Numerical simulation of freshwater lens on coral island |
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| ZHOU Cong-zhi,FANG Zhen-dong,LIANG Heng-guo,ZHAO Guang-jian,CHEN Guan-chun,HOU Zheng-chang,LI Jue-long.Numerical simulation of freshwater lens on coral island[J].Marine Sciences,2004,28(11):77-80. |
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| Authors: | ZHOU Cong-zhi FANG Zhen-dong LIANG Heng-guo ZHAO Guang-jian CHEN Guan-chun HOU Zheng-chang LI Jue-long |
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| Institution: | ZHOU Cong-zhi1,FANG Zhen-dong1,LIANG Heng-guo1,ZHAO Guang-jian1,CHEN Guan-chun1,HOU Zheng-chang2,LI Jue-long2 |
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| Abstract: | Freshwater lens is the water resource under ground on a coral island. Its formation, characteristics and influence factors were discussed. Based on the Ghyben-Herzberg approximation and Dupuit assumption, a two dimensional numerical model was developed to simulate the lens configuration of Yongxing island of Xisha islands under unsteady condition. Results from application of the model were in very good agreement with field observations, and error was between 3% and 15%. A reliable math tool was provided to develop the freshwater resources on the coral island scientifically. |
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| Keywords: | coral island freshwater lens numerical model |
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