TRANSPORT AND REACTION IN IONIC CHEMICAL-SYSTEMS

被引：33

作者：

SNITA, D

MAREK, M

机构：

[1] Department of Chemical Engineering, Prague Institute of Chemical Technology

来源：

PHYSICA D | 1994年 / 75卷 / 04期

关键词：

D O I：

10.1016/0167-2789(94)00100-6

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Mutual interaction of reaction and transport phenomena in ionic media can cause a formation of an internal electric field or, conversely, an external electric field can affect transport of ions and thus the course of chemical reactions. Model equations for spatio-temporal evolution of ionic chemical reaction system were formulated. The Nernst-Planck equation was used to describe fluxes of chemical species. The method of singular value decomposition of a scaled stoichiometric matrix is used for qualitative analysis of model equations in order to obtain manageable description of systems with fast and slow reactions. Numerically calculated spatio-temporal patterns of concentrations, electric potential and charge distribution arising in an enzymatic reaction system with hydrogen ions production and with pH dependent reaction rate reveal the richness of nonlinear phenomena which can occur in ionic reacting systems.

引用

页码：521 / 540

页数：20

共 34 条

[1] NUMERICAL STUDY OF TRAVELLING WAVES IN A REACTION-DIFFUSION SYSTEM: RESPONSE TO A SPATIOTEMPORAL FORCING [J].