Experiments on bifurcations to chaos in a forced chemical reactor

Abstract Oscillations and bifurcations to chaos are studied experimentally in a forced, isothermal, continuous stirred reactor. The forcing is produced by varying the concentration of a feed species of the Belousov-Zhabotinskii reaction. The behaviour of the system is studied as a function of two parameters, the period and amplitude of the forcing, and variations in either are shown to lead to period doubling bifurcations to chaos. By using Fourier transforms and Poincare sections we show how the behaviour varies throughout the chaotic region.

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