Field Model for Complex Ionic Fluids: Analytical Properties and Numerical Investigation

Field Model for Complex Ionic Fluids: Analytical Properties and Numerical Investigation

Year:    2021

Author:    Jian-Guo Liu, Jinhuan Wang, Yu Zhao, Zhennan Zhou

Communications in Computational Physics, Vol. 30 (2021), Iss. 3 : pp. 874–902

Abstract

In this paper, we consider the field model for complex ionic fluids with an energy variational structure, and analyze the well-posedness to this model with regularized kernels. Furthermore, we deduce the estimate of the maximal density function to quantify the finite size effect. On the numerical side, we adopt a finite volume scheme to the field model, which satisfies the following properties: positivity-preserving, mass conservation and energy dissipation. Besides, series of numerical experiments are provided to demonstrate the properties of the steady state and the finite size effect by showing the equilibrium profiles with different values of the parameter in the kernel.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.OA-2019-0223

Communications in Computational Physics, Vol. 30 (2021), Iss. 3 : pp. 874–902

Published online:    2021-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    29

Keywords:    Complex ionic fluids variational structure finite size effect finite volume method.

Author Details

Jian-Guo Liu

Jinhuan Wang

Yu Zhao

Zhennan Zhou