Abstract

AbstractThe oscillating flow reaction of bromate, bromide, and cerous ions was investigated computationally in a continuously stirred tank reactor (CSTR) where periodic perturbations were imposed on either the input rate or one of the inflow concentrations. The model computations predict a variety of interesting phenomena such as harmonic and subharmonic entrainment, chaos, transient behavior, and low amplitude harmonics. Under certain conditions the natural oscillations of the system can be considerably damped or enhanced by perturbation inputs of the proper frequency. The theoretical behavior of the system, studied under various experimental conditions, suggests many feasible experiments which are interesting in themselves, but may also serve as an additional probe of the complex mechanism used.

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