Experimental determination of Ginzburg-Landau parameters for reaction-diffusion systems
Authors:
- 1 November 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 48 (5) , 4106-4109
Abstract
We describe an experimental method to determine the parameters of the complex Ginzburg-Landau (CGL) equation for chemical reaction-diffusion systems, solely using measurements on homogeneous systems together with diffusion constants. The necessary eigenvectors and growth rate of oscillations from an unstable focus are obtained experimentally. The method applies to systems of any number of reacting species and allows predictions of wave properties of real chemical systems. With more than two diffusing species the diffusion parameter may have a negative real part thus requiring corrections to the CGL equation. DOI: http://dx.doi.org/10.1103/PhysRevE.48.4106 © 1993 The American Physical SocietyKeywords
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