【摘要】 土壤水是地表水和地下水联系的纽带,在水循环过程中起着重要作用,它和农业、水文、环境等领域有着密切关系。本文从土壤水分运动机理出发,评述了国内外水力参数取值方法和数值模拟的研究动态,对非饱和土壤水分运动数值模拟传统的有限元和有限差分研究方法进行了综合分析,并讨论了两种改进的数值计算方法——有限元质量集中法和有限体积法。本文认为非饱和土壤水分运动的数值模拟虽然取得了一些进展,但对土壤水分运动较为复杂的情况仍然手段有限,该领域的研究工作有待继续深化。更多还原

【Abstract】 Soil-water is the tache between the surface water and ground water,it was played great function in water cycle,and closely related to the agriculture,hydrology,environment etc.In this paper,depending on the domestic and foreign studies,how to get the soil hydraulic properties and numerical simulation methods are discussed.We consider that the numerical simulation of the movement of unsaturated soil-water has made a mighty advance,but there are limited means in the complex instance.The research of this field is to continue to deepen.更多还原