Enhancement of the reactivity by chaotic mixing
- 1 August 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 56 (2) , 2287-2290
- https://doi.org/10.1103/physreve.56.2287
Abstract
We report an experimental study of chaotic mixing of chemically reacting species, for first- and second-order reactions, in a system composed of a pair of like-sign vortices, oscillating periodically in time. For the second-order reaction, we find that the overall reactivity is enhanced compared to homogeneous mixing. This provides experimental evidence that chaotic mixing may increase the overall reaction rate for second-order reactions. We offer a method to estimate the global reactivity, which underlines the role of the concentration filaments formed, in the system, by the chaotic process.Keywords
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