Turing instability in a boundary-fed system
- Creators
- Setayeshgar, S.
- Cross, M. C.
Abstract
The formation of localized structures in the chlorine dioxide-idodine-malonic acid (CDIMA) reaction-diffusion system is investigated numerically using a realistic model of this system. We analyze the one-dimensional patterns formed along the gradients imposed by boundary feeds, and study their linear stability to symmetry-breaking perturbations (Turing instability) in the plane transverse to these gradients. We establish that an often-invoked simple local linear analysis that neglects longitudinal diffusion is inappropriate for predicting the linear stability of these patterns. Using a fully nonuniform analysis, we investigate the structure of the patterns formed along the gradients and their stability to transverse Turing pattern formation as a function of the values of two control parameters: the malonic acid feed concentration and the size of the reactor in the dimension along the gradients. The results from this investigation are compared with existing experiments.
Additional Information
©1998 The American Physical Society Received 26 February 1998 This work was supported by the National Science Foundation under Grant No. DMR-9311444, and by a generous award of computer time from the San Diego Supercomputer Center. We thank Dan Meiron for useful advice on the numerics.Files
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Additional details
- Eprint ID
- 2300
- Resolver ID
- CaltechAUTHORS:SETpre98
- Created
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2006-03-23Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field