Modeling of electric mass transfer process in controlled electrochemical resistance

Abstract

The aim of the study is to mathematically simulate the concentration field of an electrolyte in a controlled electrochemical resistance. All processes occurring in the object are considered isothermal, the electric fields in all fragments of the electrochemical resistance are potential, plane-parallel. All physical and chemical parameters of the object’s materials are constant values. The kinetics of all electrode processes in the object of study is controlled by the diffusion stage in the electrolyte. As a research method, the operator method of Laplace and Fourier – expansion is used to obtain an analytical description of the concentration field of the electrolyte. In the course of the study, a mathematical model of the concentration field of the electrolyte with a uniform distribution of the current density was obtained. An analytical expression is obtained that allows to construct the surface of the change in the concentration of the electrolyte in the controlled electrochemical resistance. The concentration profiles of the electrolyte at different temperatures and the time dependences of the change in the concentration of the electrolyte are calculated.