Field model for complex ionic fluids: analytical properties and numerical investigation
arXiv:1912.09208
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.
arXiv comment25 pages, 14 figures
References in corpus (7)
- Diffuse-Charge Dynamics in Electrochemical Systems
- A Finite-Volume Method for Nonlinear Nonlocal Equations with a Gradient Flow Structure
- A novel formulation of nonlocal electrostatics
- A free energy satisfying finite difference method for Poisson--Nernst--Planck equations
- Molecular Mean-Field Theory of Ionic Solutions: a Poisson-Nernst-Planck-Bikerman Model
- A free energy satisfying discontinuous Galerkin method for one-dimensional Poisson--Nernst--Planck systems
- A Nonlocal Poisson-Fermi Model for Ionic Solvent