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Weak Solutions for the Cahn-Hilliard Equation with Degenerate Mobility
被引:61
|作者:
Dai, Shibin
[1
]
Du, Qiang
[2
]
机构:
[1] New Mexico State Univ, Dept Math Sci, Las Cruces, NM 88003 USA
[2] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA
基金:
美国国家科学基金会;
关键词:
SURFACE MOTION;
D O I:
10.1007/s00205-015-0918-2
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
In this paper, we study the well-posedness of Cahn-Hilliard equations with degenerate phase-dependent diffusion mobility. We consider a popular form of the equations which has been used in phase field simulations of phase separation and microstructure evolution in binary systems. We define a notion of weak solutions for the nonlinear equation. The existence of such solutions is obtained by considering the limits of Cahn-Hilliard equations with non-degenerate mobilities.
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页码:1161 / 1184
页数:24
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