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Taylor J.E. — A Variational Approach to Crystalline Triple-Junction Motion
Taylor J.E. — A Variational Approach to Crystalline Triple-Junction Motion



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Название: A Variational Approach to Crystalline Triple-Junction Motion

Автор: Taylor J.E.

Аннотация:

Journal of Statistical Physics, Vol. 95, Nos. 56, 1999, p. 1221-1244.
A variational description is given for curves with triple junctions for the motion with normal velocity v = M(C+k_Phi), where k_phi stands for the crystalline curvature as determined by the curves and by the crystalline (polygonal Wulff shape) surface free energy functions PHI for each interface, C is constant on each interface, and M is a compatible normal-dependent mobility function for each interface. This variational formulation is based on the idea that the motion should be gradient flow, in the L^2 inner product, for the sum of the surface free energy and the bulk free energy. If the surface free energy functions PHI are identically zero, the motion is that given by Taylor (1995). If the surface free energy functions are positive and crystalline, then the motion is that given by Taylor (1993). Finally, if the surface free energy functions are written as PHI = e*phi_0, then the limiting motion as eJ,0 is in general different from the motion for e = 0 [and hence different from that given by Taylor (1993); the limiting motion is presumably that given by Reitich and Mete Soner (1996)].


Язык: en

Рубрика: Физика/

Тип: Статья

Статус предметного указателя: Неизвестно

ed2k: ed2k stats

Год издания: 1999

Количество страниц: 24

Добавлена в каталог: 20.10.2013

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