Control of chemoconvective Structures in a slab reactor.
- Resource Type
- Article
- Authors
- Bratsun, D. A.; Wit, A. De
- Source
- Technical Physics. Feb2008, Vol. 53 Issue 2, p146-153. 8p. 5 Diagrams, 1 Chart, 2 Graphs.
- Subject
- *MATHEMATICAL models
*PROPERTIES of matter
*NUMERICAL analysis
*DIFFUSION
*THERMAL conductivity
- Language
- ISSN
- 1063-7842
The object of investigation is dissipative strictures spontaneously arising in a two-layer system of reacting liquids placed in a narrow gap between two hard finite-conductivity plates. A mathematical model of this phenomenon includes a set of reaction, diffusion, and convection equations written in the Hele-Show cell approximation. Numerical analysis of the model shows that an exothermal reaction going near the interface generates a regular chemoconvective structure. The feasibility of controlling these structures by locally varying the thermal conductivity of the reactor walls is considered. The efficiency of such a control is discussed, and comparison with experimental data is made. [ABSTRACT FROM AUTHOR]