ROTATING CHEMICAL WAVES IN SMALL CIRCULAR DOMAINS

Authors
HARTMANN N BAR M KEVREKIDIS IG KRISCHER K IMBIHL R
Citation
N. Hartmann et al., ROTATING CHEMICAL WAVES IN SMALL CIRCULAR DOMAINS, Physical review letters, 76(8), 1996, pp. 1384-1387
Citations number
29
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
76
Issue
8
Year of publication
1996
Pages
1384 - 1387
Database
ISI
SICI code
0031-9007(1996)76:8<1384:RCWISC>2.0.ZU;2-F
Abstract
The influence of the domain size on the properties of rotating waves i n the NO + CO reaction on a microstructured Pt(100) surface is investi gated for circular geometries. Below a critical domain size, determine d by the spiral wavelength in an unbounded medium, the frequency of th e rotating waves increases substantially due to interaction of the wav e tip with the boundary. The phenomena are reproduced qualitatively wi th a reaction-diffusion model.