其他摘要：A numerical model for simulation of one dimensional infiltration and groundwater flow in variably-saturated porous media is presented. The algorithm consists in a discretization of Richards' equation that combines a temporal linearization using a Picard iteration with a spatial approximation employing a hybridized mixed finite element procedure. The algorithm is computationally efficientand mass conservative. Some relevant features of the associated algebraic problem and a numerical example of infiltration in a flatland region are also included.
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