The paper predicts the changing tendency of groundwater resource in Changma alluvial fan by numerical modeling, applying the methodoffinitedifference and irregular polygon cells.
应用有限差分方法,采用不规则多边形剖分,对昌马冲洪积扇区地下水资源数量的变化趋势进行了模拟计算。
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The property of the near field subwavelength imaging in a metal thin-film structure is investigated using finitedifference time domain method based on Drude model.