Second order unconditionally convergent and energy stable linearized scheme for MHD equations
Second order unconditionally convergent and energy stable linearized scheme for MHD equations
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MHD 方程二阶无条件收敛且能量稳定的线性化格式
DOI:
10.1007/s10444-017-9552-x
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发表时间:
2017-08
影响因子:
1.7
通讯作者:
Chunjia Bi
中科院分区:
文献类型:
--
作者:
Guodong Zhang;Jinjin Yang2;Chunjia Bi
In this paper, we propose an efficient numerical scheme for magnetohydrodynamics (MHD) equations. This scheme is based on a second order backward difference formula for time derivative terms, extrapolated treatments in linearization for nonlinear terms. Meanwhile, the mixed finite element method is used for spatial discretization. We present that the scheme is unconditionally convergent and energy stable with second order accuracy with respect to time step. The optimalL2andH1fully discrete error estimates for velocity, magnetic variable and pressure are also demonstrated. A series of numerical tests are carried out to confirm our theoretical results. In addition, the numerical experiments also show the proposed scheme outperforms the other classic second order schemes, such as Crank-Nicolson/Adams-Bashforth scheme, linearized Crank-Nicolson’s scheme and extrapolated Gear’s scheme, in solving high physical parameters MHD problems.
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影响因子:
2.9
作者:
J. Varah
通讯作者:
J. Varah
DOI:
10.1007/978-94-009-2561-8
发表时间:
1989
期刊:
--
影响因子:
--
作者:
A. Lifschitz
通讯作者:
A. Lifschitz
影响因子:
2.1
作者:
Schötzau, D
通讯作者:
Schötzau, D
DOI:
10.1051/m2an/2013120
发表时间:
2014-05
期刊:
Mathematical Modelling and Numerical Analysis
影响因子:
--
作者:
W. Layton;Nathaniel Mays;M. Neda;C. Trenchea
通讯作者:
W. Layton;Nathaniel Mays;M. Neda;C. Trenchea
影响因子:
3.9
作者:
Zhang Guo-Dong;He Yinnian;Zhang Yan
通讯作者:
Zhang Yan