A reduced order method for Allen-Cahn equations
A reduced order method for Allen-Cahn equations
复制标题
Allen-Cahn 方程的降阶方法
DOI:
10.1016/j.cam.2015.07.009
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发表时间:
2016-01
影响因子:
2.4
通讯作者:
Qiuqi Li
中科院分区:
文献类型:
--
作者:
Huailing Song;Lijian Jiang;Qiuqi Li
In this article, we present a reduced order method for modeling and computing Allen–Cahn equations. A global basis method is used in the discretized system of the Allen–Cahn equations and Proper Orthogonal Decomposition (POD) method is utilized to reduce the global basis. To treat the difficulty of nonlinearity for Allen–Cahn equations, we apply Discrete Empirical Interpolation method (DEIM) to the nonlinear term from the discretization system. A reduced order method is developed by integrating POD and DEIM. It is well-known that the Allen–Cahn equations have a nonlinear stability property, i.e., the free-energy functional decreases with respect to time. The discretized Allen–Cahn system modeled by the POD–DEIM reduced order method can inherit the nonlinear stability of the continuous model. The computation efficiency is significantly enhanced by using the reduced order method. A few numerical results are presented to illustrate the performance of the reduced order method for deterministic Allen–Cahn equations and stochastic Allen–Cahn equations.
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影响因子:
1.1
作者:
Jie Shen;Xiaofeng Yang
通讯作者:
Jie Shen;Xiaofeng Yang
DOI:
10.1063/1.3637861
发表时间:
2011-09
期刊:
SIAM J. Sci. Comput.
影响因子:
--
作者:
S. Boscarino;L. Pareschi;G. Russo
通讯作者:
S. Boscarino;L. Pareschi;G. Russo
DOI:
10.1016/0001-6160(79)90196-2
发表时间:
1979-01-01
期刊:
ACTA METALLURGICA
影响因子:
--
作者:
ALLEN, SM;CAHN, JW
通讯作者:
CAHN, JW
影响因子:
1.9
作者:
Kunisch, K;Volkwein, S
通讯作者:
Volkwein, S
影响因子:
3.1
作者:
Chaturantabut, Saifon;Sorensen, Danny C.
通讯作者:
Sorensen, Danny C.