Spiral instability to line sources in forced chemical pattern turbulence

A. Belmonte, J. M. Flesselles, Q. Ouyang

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


A stably rotating spiral wave in the Belousov-Zhabotinsky reaction studied in an open spatial reactor becomes unstable when forced by a periodic chemical oscillation. The instability starts from the spiral center and occurs when the ratio of the spiral-rotation period to that of the forcing is close to 3/2. The resulting disordered state involves drifting line sources that emit waves in both directions. These unusual objects are reminiscent of the travelling hole solutions to the one-dimensional complex Ginzburg-Landau equation.

Original languageEnglish (US)
Pages (from-to)665-670
Number of pages6
JournalEurophysics Letters
Issue number9
StatePublished - Sep 20 1996

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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