地下水溶质迁移规律研究概述
An Overview of Migration Simulation of Groundwater Solute
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摘要: 在地下水的相关研究中,地下水污染、土地盐碱化、海水入侵等诸多实际问题主要的研究方法都涉及地下水溶质迁移模拟。相比地下水水流模拟的相对完善,对溶质迁移的模拟比较薄弱且迁移过程本身复杂性较高,目前地下水溶质迁移的研究工作还处在全面发展的阶段。总结并阐述了目前溶质迁移模拟所使用的对流迁移、对流-弥散模拟等主要数值方法,并对这些方法的优缺点和应用实例进行总结分析。针对国内有关地下水金属迁移、胶体迁移、微生物作用、耦合作用等方面研究进行了概述,并在参数确定、裂隙介质运移机理和多相介质条件下运移模拟可能取得的突破进行分析。Abstract: In the studies related to groundwater, the main research methods of some practical problems such as groundwater pollution, soil salinization and seawater intrusion all involve migration simulation of groundwater solute. Migration simulation is relatively better than groundwater flow simulation, but the simulation of solute migration is rather poor and the migration process itself is quite complicated, so the study of groundwater solute migration is still in a development stage. In this paper, the main numeral methods such as convection migration and convection-diffusion simulation currently used for solute migration simulation are summarized and illustrated. Advantages and disadvantages of these methods and application cases are summed up. Domestic and foreign researches concerning metal migration of groundwater, colloid migration, microbial action and coupling are reviewed. Finally, possible breakthroughs of migration simulation are analyzed under the conditions of parameter identification, fissure medium migration mechanism and the multiphase medium.
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Key words:
- Groundwater Contamination /
- Solute Migration /
- Numerical Simulation
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