Stability and convergence analysis for a new phase field crystal model with a nonlocal Lagrange multiplier
Stability and convergence analysis for a new phase field crystal model with a nonlocal Lagrange multiplier
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具有非局部拉格朗日乘数的新相场晶体模型的稳定性和收敛性分析
DOI:
10.1002/mma.7080
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发表时间:
2020-06
影响因子:
2.9
通讯作者:
Tao Sun
中科院分区:
文献类型:
--
作者:
Shimin Lin;Junying Cao;Jun Zhang;Tao Sun
In this work, an energy stable numerical scheme is proposed to solve the PFC model with a nonlocal Lagrange multiplier. The construction of the numerical scheme is based on invariant energy quadratization (IEQ) technique to transform a nonlinear system into a linear system, while the time variables are discretized by second‐order scheme. The stability term in the new scheme can balance the influence of nonlinear term. Moreover, we obtain the results of unconditional energy stability, uniqueness, and uniform boundedness of numerical solution, and the numerical scheme is convergent with order of O(δt2) . Several numerical tests are conducted to confirm the theoretical results.
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DOI:
10.1051/m2an/2013074
发表时间:
2013-09
期刊:
Mathematical Modelling and Numerical Analysis
影响因子:
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作者:
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通讯作者:
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DOI:
10.1137/110822839
发表时间:
2012
期刊:
SIAM J. Numer. Anal.
影响因子:
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作者:
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Jie Shen;Cheng Wang;Xiaoming Wang;S. Wise
影响因子:
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