A characteristic block-centered finite difference method for Darcy-Forchheimer compressible miscible displacement problem

A characteristic block-centered finite difference method for Darcy-Forchheimer compressible miscible displacement problem
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求解Darcy-Forchheimer可压缩混相位移问题的特征块中心有限差分法

DOI:
10.1016/j.cam.2022.114303
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发表时间:
2022-04
影响因子:
2.4
通讯作者:
Nianyu Yi
Nianyu Yi
中科院分区:
数学2区
文献类型:
--
作者:
Ao Li;Jian Huang;Wei Liu;Huayi Wei;Nianyu Yi

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本文针对多孔介质中可压缩可混溶驱动问题,构造了一种特征块中心差分方法,并进行了分析和数值验证。采用块中心有限差分法离散混溶问题,压力方程采用非线性Darcy-Forchheimer模型,输运方程采用特征线法求解。设计了一种解耦算法,并结合Picard迭代法求解得到的非线性系统。我们的方法被证明是有效的与建立的理论分析和几个支持的数值实验。
In this paper, we construct, analyze, and numerically validate a characteristic block-centered finite difference method for Darcy–Forchheimer compressible miscible displacement problem in porous media. The block-centered finite difference method is used to discretize the miscible problem, where the pressure equation is described by the nonlinear Darcy–Forchheimer model, and the transport equation is addressed with the help of the characteristic method. A decoupled algorithm is designed for solving the resulting nonlinear system combined with Picard iteration. Our method is shown to be effective with the established theoretical analysis and several supporting numerical experiments.
多孔介质中不可压缩混相位移问题的局部间断伽辽金法
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