@Article{JCM-40-794, author = {Hu , Hanzhang and Chen , Yanping}, title = {A Characteristic Mixed Finite Element Two-Grid Method for Compressible Miscible Displacement Problem}, journal = {Journal of Computational Mathematics}, year = {2022}, volume = {40}, number = {5}, pages = {794--813}, abstract = {
A nonlinear parabolic system is derived to describe compressible miscible displacement in a porous medium. The concentration equation is treated by a mixed finite element method with characteristics (CMFEM) and the pressure equation is treated by a parabolic mixed finite element method (PMFEM). Two-grid algorithm is considered to linearize nonlinear coupled system of two parabolic partial differential equations. Moreover, the $L^q$ error estimates are conducted for the pressure, Darcy velocity and concentration variables in the two-grid solutions. Both theoretical analysis and numerical experiments are presented to show that the two-grid algorithm is very effective.
}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.2101-m2020-0277}, url = {http://global-sci.org/intro/article_detail/jcm/20548.html} }