A decoupling two-grid method for the time-dependent Poisson-Nernst-Planck equations
A decoupling two-grid method for the time-dependent Poisson-Nernst-Planck equations
复制标题
时变泊松-能斯特-普朗克方程的解耦二网格法
DOI:
10.1007/s11075-019-00744-4
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发表时间:
2018-04
影响因子:
2.1
通讯作者:
Lu Benzhuo
中科院分区:
文献类型:
--
作者:
Shen Ruigang;Shu Shi;Yang Ying;Lu Benzhuo
We study a two-grid strategy for decoupling the time-dependent Poisson-Nernst-Planck equations describing the mass concentration of ions and the electrostatic potential. The computational system is decoupled to smaller systems by using coarse space solutions at each time level, which can speed up the solution process compared with the finite element method combined with the Gummel iteration. We derive the optimal error estimates inL2norm for both semi- and fully discrete finite element approximations. Based on the a priori error estimates, the error estimates inH1norm are presented for the two-grid algorithm. The theoretical results indicate this decoupling method can retain the same accuracy as the finite element method. Numerical experiments including the Poisson-Nernst-Planck equations for an ion channel show the efficiency and effectiveness of the decoupling two-grid method.
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影响因子:
3.9
作者:
Junqiao Wu;V. Srinivasan;Jinchao Xu;Chaoyang Wang
通讯作者:
Junqiao Wu;V. Srinivasan;Jinchao Xu;Chaoyang Wang
DOI:
10.1090/s0025-5718-99-01148-5
发表时间:
1999-10
期刊:
Math. Comput.
影响因子:
--
作者:
Jinchao Xu;L. Zikatanov
通讯作者:
Jinchao Xu;L. Zikatanov
DOI:
10.1016/j.camwa.2013.09.022
发表时间:
2014
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
R. Araya;P. Venegas
通讯作者:
R. Araya;P. Venegas
DOI:
10.1016/j.camwa.2015.09.012
发表时间:
2015-11
期刊:
Comput. Math. Appl.
影响因子:
--
作者:
Yang Liu;Yanwei Du;Hong Li;Jichun Li;Siriguleng He
通讯作者:
Yang Liu;Yanwei Du;Hong Li;Jichun Li;Siriguleng He
DOI:
10.1142/s0218202509003619
发表时间:
2009-05
影响因子:
3.5
作者:
M. Burger;R. Pinnau
通讯作者:
M. Burger;R. Pinnau