均质化(气候)
多物理
电解质
微尺度化学
多尺度建模
宏观尺度
宏
先验与后验
材料科学
应用数学
统计物理学
计算机科学
有限元法
物理
热力学
数学
化学
计算化学
生物多样性
生态学
哲学
数学教育
电极
认识论
量子力学
生物
程序设计语言
作者
Vinh Tu,Fredrik Larsson,Kenneth Runesson,Ralf Jänicke
标识
DOI:10.1016/j.euromechsol.2022.104901
摘要
In this paper, we develop a multi-scale modeling framework for a multiphysics problem characterized by electro-chemically coupled ion transport in a Structural Battery Electrolyte (SBE). The governing equations of the problem are established by coupling Gauss law with mass conservation for each mobile species. By utilizing variationally consistent homogenization, we are able to establish a two-scale model where both the macro-scale and sub-scale equations are deduced from a single-scale problem. Investigations of the sub-scale RVE problem show that the transient effects are negligible for the length scales relevant to the studied application, which motivates the assumption of micro-stationarity. In the special case of linear constitutive response, we get a numerically efficient solution scheme for the macro-scale problem that is based on a priori upscaling. As a final step, we demonstrate the numerically efficient solution scheme by solving a 2D macro-scale problem using upscaled constitutive quantities based on a 3D RVE.
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