Sharp Interface Limit of a Stokes/Cahn–Hilliard System, Part II: Approximate Solutions

Sharp Interface Limit of a Stokes/Cahn–Hilliard System, Part II: Approximate Solutions
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Stokes/CahnâHilliard 系统的尖锐接口限制,第二部分:近似解

DOI:
10.1007/s00021-021-00565-3
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发表时间:
2020
影响因子:
1.3
通讯作者:
A. Marquardt
A. Marquardt
中科院分区:
数学3区
文献类型:
--
作者:
H. Abels;A. Marquardt

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利用匹配渐近展开的方法,我们构造了Stokes/Cahn-Hilliard系统的严格合适的近似解。这是本文第一部分[3]中给出的收敛证明的主要一步,文中给出了二维有界光滑区域上耦合的Stokes/Cahn-Hilliard系统的严格界面极限。与以前的工作相比,我们引入了分数阶项,分数阶项很重要,但有一个共同的问题,那就是它们在任意强范数下可能不是一致估计的。因此,当考虑Stokes/Cahn-Hilliard系统中的近似时,对误差进行必要的估计是相当复杂的。
We construct rigorously suitable approximate solutions to the Stokes/Cahn–Hilliard system by using the method of matched asymptotics expansions. This is a main step in the proof of convergence given in the first part of this contribution, [3], where the rigorous sharp interface limit of a coupled Stokes/Cahn–Hilliard system in a two dimensional, bounded and smooth domain is shown. As a novelty compared to earlier works, we introduce fractional order terms, which are of significant importance, but share the problematic feature that they may not be uniformly estimated inin arbitrarily strong norms. As a consequence, gaining necessary estimates for the error, which occurs when considering the approximations in the Stokes/Cahn–Hilliard system, is rather involved.
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DOI: 10.1090/conm/710/14361
发表时间: 2017
期刊: arXiv: Analysis of PDEs
影响因子: --
作者:
H. Abels;M. Moser
通讯作者: M. Moser
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DOI: 10.3934/dcdss.2020467
发表时间: 2020
期刊: Discrete & Continuous Dynamical Systems - S
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作者:
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DOI: 10.4171/ifb/457
发表时间: 2020
影响因子: 1
作者:
H. Abels;A. Marquardt
通讯作者: A. Marquardt