TY - JOUR T1 - A Decoupling Two-Grid Method for the Steady-State Poisson-Nernst-Planck Equations AU - Yang , Ying AU - Lu , Benzhuo AU - Xie , Yan JO - Journal of Computational Mathematics VL - 4 SP - 556 EP - 578 PY - 2019 DA - 2019/06 SN - 37 DO - http://doi.org/10.4208/jcm.1904-m2018-0181 UR - https://global-sci.org/intro/article_detail/jcm/13212.html KW - Poisson-Nernst-Planck equations, Two-grid finite element method, Decoupling method, Error analysis, Gummel iteration. AB -
Poisson-Nernst-Planck equations are widely used to describe the electrodiffusion of ions in a solvated biomolecular system. Two kinds of two-grid finite element algorithms are proposed to decouple the steady-state Poisson-Nernst-Planck equations by coarse grid finite element approximations. Both theoretical analysis and numerical experiments show the efficiency and effectiveness of the two-grid algorithms for solving Poisson-Nernst-Planck equations.