TY - JOUR T1 - A Mass-Preserving Characteristic Finite Difference Method for Miscible Displacement Problem AU - Zhang , Jiansong AU - Yu , Yue AU - Qin , Rong AU - Liu , Zhaohui JO - Advances in Applied Mathematics and Mechanics VL - 1 SP - 164 EP - 180 PY - 2023 DA - 2023/12 SN - 16 DO - http://doi.org/10.4208/aamm.OA-2022-0060 UR - https://global-sci.org/intro/article_detail/aamm/22294.html KW - The method of characteristics, mass-preserving, finite difference, miscible displacement problem. AB -

In this article, a new characteristic finite difference method is developed for solving miscible displacement problem in porous media. The new method combines the characteristic technique with mass-preserving interpolation, not only keeps mass balance but also is of second-order accuracy both in time and space. Numerical results are presented to confirm the convergence and the accuracy in time and space.