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油水两相渗流改进IMPES解法

刘立明,廖新维

Mechanics in Engineering（2003）

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Abstract
给出了任意网格剖分下油水两相渗流控制方程的离散形式.使用近似向量,通过在IMPES方法中连续两次解N阶矩阵,获得了与半隐式解同等的稳定性.并给出了实际操作步骤.改进方法在达到与半隐式解相同稳定性的同时,计算效率大大提高,其有效性为数值模拟算例所证实.该方法也适用于其它类型的非线性扩散方程(组)数值求解问题.
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Key words
modified impes solution,porous media,oil-water
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