Abstract

We investigate the origin of spontaneous chemical wave generation in an excitable Beloubov-Zhabotinskii system. We solve one-dimensional reaction-diffusion equations of an Oregonator model with the initial profiles possessing an excitation of varying concentration of either HBrO 2 or Br - , and the excitation occurs within a region of different length. The concentration of the threshold excitation necessary for a wave to propagate depends on the length within which the initial excitation is applied

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