A Simplified Threshold Dynamics Algorithm for Isotropic Surface Energies
A Simplified Threshold Dynamics Algorithm for Isotropic Surface Energies
复制标题
各向同性表面能的简化阈值动力学算法
DOI:
10.1007/s10915-018-0866-8
复制
发表时间:
2019
影响因子:
2.5
通讯作者:
Esedoḡlu, Selim
中科院分区:
文献类型:
--
作者:
Salvador, Tiago;Esedoḡlu, Selim
We present a simplified version of the threshold dynamics algorithm given in Esedoḡlu and Otto (Commun Pure Appl Math 68(5):808–864, 2015). The new version still allows specifyingpossibly distinct surface tensions andpossibly distinct mobilities for a network withNphases, but achieves this level of generality without the use of retardation functions. Instead, it employs linear combinations of Gaussians in the convolution step of the algorithm. Convolutions with only two distinct Gaussians is enough for the entire network, maintaining the efficiency of the original thresholding scheme. We discuss stability and convergence of the new algorithm, including some counterexamples in which convergence fails. The apparently convergent cases include unequal surface tensions given by the Read and Shockley model and its three dimensional extensions, along with equal mobilities, that are a very common choice in computational materials science.
影响因子:
4.1
作者:
Steven J. Ruuth;B. Merriman
通讯作者:
Steven J. Ruuth;B. Merriman
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
Giovanni Alberti;G. Bellettini
通讯作者:
G. Bellettini
影响因子:
2.1
作者:
Tim Laux;F. Otto
通讯作者:
F. Otto