海水入侵模拟理论与方法研究进展

Advances in theories and methods for simulation of saltwater intrusion

对海水入侵模拟研究涉及的海水入侵监测指标、数学模型及数值方法、临海边界处理和海水入侵防治对策研究等方面做了全面总结,并指出海水入侵数值模拟研究进一步发展的方向和研究中亟待解决的问题。认为变密度过渡带模型将是海水入侵研究的主流模型,而自适应欧拉拉格朗日方法是求解此类模型最有效的数值方法。另外,指出硼同位素特别适合于水文地质条件复杂的滨海含水层海水入侵的监测。

A summary is made on some aspects related to the simulation of saltwater intrusion, including the monitoring index about saltwater intrusion, mathematical model and numerical method, treatment of coastal boundaries, and measures for control of saltwater intrusion. After analysis of some existing problems in the simulation of saltwater intrusion, the trend of its further development is expected, and some problems need to be solved urgently are pointed out. Finally, some conclusions are drawn: the variable-density transitional zone model will dominate in the research of saltwater intrusion; the self-adaptive Eulerian-Lagrangian method will be the most effective method to solve the model. Besides, it is pointed out that the boron isotope is especially suitable for monitoring of saltwater intrusion in coastal aquifers with complex hydrological-geological condition.