Investigations on several numerical methods for the non-local Allen–Cahn equation

Investigations on several numerical methods for the non-local Allen–Cahn equation
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非局部Allen-Cahn方程的几种数值方法研究

DOI:
10.1016/j.ijheatmasstransfer.2015.03.071
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发表时间:
2015-08
影响因子:
5.2
通讯作者:
Xinlong Feng
Xinlong Feng
中科院分区:
工程技术2区
文献类型:
--
作者:
Shuying Zhai;Zhifeng Weng;Xinlong Feng

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本文研究了具有时空相关的拉格朗日乘子的非定域Allen-Cahn方程的数值解法。分别提出了Crank-Nicolson有限差分法、有限差分算子分裂法和Fourier谱算子分裂法。这些方法之间的比较,在精度和计算效率方面解决不同类型的问题。数值结果表明,傅立叶谱算子分裂方法在空间上具有很高的谱精度,特别适用于长时间动力学的模拟。
This paper investigates some numerical methods for solving the non-local Allen–Cahn equation with a space–time dependent Lagrange multiplier. Several types of methods, including the Crank–Nicolson finite difference method, the finite difference operator splitting method, and the Fourier spectral operator splitting method are proposed respectively. Comparisons are made among these methods in terms of accuracy and computational efficiency for solving different types of problems. Numerical results show that the Fourier spectral operator splitting method is very efficient because of its spectral accuracy in space, especially for simulation of long time dynamics.
DOI: 10.1016/j.camwa.2010.06.041
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期刊: Comput. Math. Appl.
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DOI: 10.1016/0001-6160(79)90196-2
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