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对于带岛淡水透镜的数值模拟,涉及到由降水养的淡水表层

Dongmei Sun¹, Mubo Wang¹, Ping Feng¹

¹State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, PR China.

Journal of contaminant hydrology

|September 24, 2023

概括

研究人员模拟了岛屿淡水表,考虑雨水透期间的水空气流. 数值模型准确地预测了淡水透镜的几何形状,改善了地下水管理策略.

科学领域:

水文地质学水文地质学
环境工程环境工程
岛屿水文学岛屿水文学

背景情况:

淡水表对于岛屿淡水镜片的形成和管理至关重要.
在物理模型中可视化淡水表是具有挑战性的.
降雨透涉及水和空气流的结合,影响地下水的充电.

研究的目的:

为了模拟海洋岛屿上的平稳状态淡水平面位置.
为了研究水空气双相流对淡水透镜的影响.
通过分析解决方案来验证数值模型.

主要方法:

使用TOUGH2/EOS7数值模型模拟液体和气体双相流动.
在不和和多孔介质中模拟了三个组成部分:盐水,水和空气.
将数值结果与Dupuit-Ghyben-Herzberg和Van der Veer分析解决方案进行比较.

主要成果:

数字模型成功地划出了雨水养的淡水透镜的几何形状.
结果显示与杜普伊特-盖本-赫兹伯格解决方案达成合理一致,尽管DGH低估了镜头尺寸.
对于范德维尔的同质岛屿解决方案,观察到更好的协议.

结论:

数字模型准确地模拟了岛屿淡水表和透镜几何.
该模型增强了对岛屿水文学的水空气流动动态的理解.
这种方法为复杂的岛屿地下水系统建模提供了一个参考.

关键词:

淡水表水表表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表水表.岛屿淡水镜头岛屿淡水镜头数字模型的数值模型.输出流面面的外流面是什么意思降雨透的透情况水-空气双相流量流

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