A diffuse interface model and semi-implicit energy stable finite element method for two-phase magnetohydrodynamic flows
A diffuse interface model and semi-implicit energy stable finite element method for two-phase magnetohydrodynamic flows
复制标题
两相磁流体动力流的扩散界面模型和半隐式能量稳定有限元方法
DOI:
10.1016/j.cma.2019.07.022
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发表时间:
2019-11
影响因子:
7.2
通讯作者:
He Yinnian
中科院分区:
文献类型:
--
作者:
Yang Jinjin;Mao Shipeng;He Xiaoming;Yang Xiaofeng;He Yinnian
In this paper, we propose a diffuse interface model and finite element approximation for two-phase magnetohydrodynamic (MHD) flows with different viscosities and electric conductivities. An energy stable scheme, which is based on the finite element method for the spatial discretization and first order semi-implicit scheme combined with convex splitting method for the temporal discretization, is proposed to solve this new model. The numerical scheme is proved to be mass-conservative and energy law preserving. By Leray–Schauder fixed point theorem, the existence of solutions to the numerical scheme is shown. The uniqueness of the numerical solutions is obtained. Utilizing the stability of the numerical scheme and the compactness method, the existence of the weak solutions to the two-phase MHD model is established as well. Furthermore, given more regularity on the weak solution, the convergence of the numerical scheme is derived. Finally, numerical experiments are provided to verify the theoretical results and validate the proposed model.
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影响因子:
2.1
作者:
Schötzau, D
通讯作者:
Schötzau, D
DOI:
10.1016/s0045-7825(01)00196-7
发表时间:
2001-08
影响因子:
7.2
作者:
N. B. Salah;A. Soulaïmani;W. Habashi
通讯作者:
N. B. Salah;A. Soulaïmani;W. Habashi
影响因子:
1.7
作者:
Guodong Zhang;Jinjin Yang2;Chunjia Bi
通讯作者:
Chunjia Bi
影响因子:
1.3
作者:
Wenqian Cui;Yaobin Ou;D;an Ren
通讯作者:
an Ren
DOI:
10.1016/s0167-2789(00)00064-6
发表时间:
2000-09
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
G. McFadden;A. A. Wheeler-A.;Daniel M. Anderson
通讯作者:
G. McFadden;A. A. Wheeler-A.;Daniel M. Anderson