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arXiv 1710.09166math.APcs.NAmath.NA
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修正器均质化估计:在孔隙域中非稳态斯托克斯-能斯特-普朗克-泊松系统的均质化极限

Corrector homogenization estimates for a non-stationary Stokes-Nernst-Planck-Poisson system in perforated domains

Gran Sasso Science Institute(格兰萨索科学研究所);Karlstad University(卡尔斯塔德大学)

Vo Anh Khoa, Adrian Muntean

AI总结:

本文研究非稳态斯托克斯-能斯特-普朗克-泊松系统在孔隙域中的均质化极限,通过双尺度收敛方法推导修正器均质化估计,控制微宏观浓度及梯度差异,克服耦合流结构、非线性漂移项和微结构挑战。

摘要:

我们考虑在孔隙域中提出的非稳态斯托克斯-能斯特-普朗克-泊松系统。我们的目标是严格证明通过双尺度收敛方法得到的放大系统均质化极限。换句话说,我们希望获得所谓的修正器均质化估计,以指定在放大微观方程时的误差。本质上,我们通过合适的范数控制微宏观浓度及相应微宏观浓度梯度的差异。我们面临的重大挑战包括系统的耦合流结构、非线性漂移项以及微结构的存在。通过各种能量似估计,我们讨论了多种尺度选择和边界条件。

英文摘要:

We consider a non-stationary Stokes-Nernst-Planck-Poisson system posed in perforated domains. Our aim is to justify rigorously the homogenization limit for the upscaled system derived by means of two-scale convergence in \cite{RMK12}. In other words, we wish to obtain the so-called corrector homogenization estimates that specify the error obtained when upscaling the microscopic equations. Essentially, we control in terms of suitable norms differences between the micro- and macro-concentrations and between the corresponding micro- and macro-concentration gradients. The major challenges that we face are the coupled flux structure of the system, the nonlinear drift terms and the presence of the microstructures. Employing various energy-like estimates, we discuss several scalings choices and boundary conditions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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