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珊瑚岛礁淡水透镜体的数值模 被引量:13

Numerical simulation of freshwater lens on coral island
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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,Darcy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。 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.
出处 《海洋科学》 CAS CSCD 北大核心 2004年第11期77-80,共4页 Marine Sciences
基金 总后勤部基金项目(总后[1998]后司字第86号)
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 coral island freshwater lens numerical model
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参考文献1

  • 1Falkland A C. Management of freshwater lenses on small coral islands[A] . Water Down Under 94 congress[C] .Australian:Adelaide,1994.417-422.

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