This paper discusses a new design and implementation of a liquid mixing apparatus based on the commonly used stirred tank model. This mixer is capable of working under the control of different kinds of signals, including DC signals, periodic signals and chaotic signals. Chaotic signals, in particular, are generated and applied to the impeller/tank velocity control mechanism, exploring the efficacy of chaotic perturbations in liquid mixing. Comparable experiments reveal that the chaotic perturbations injected into the stirred tank help enhance the liquid mixing efficiency quite significantly, based on the sucrose dissolution experiments in our laboratory. (C) 2006 Elsevier Ltd. All rights reserved.
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