講演者：Prof. Tamas Tel （Eotvos Lorand Univ.）
講演題目： Chemical and Biological Activity in Flows
Many examples of chemical and biological processes take place in flows. Many of them, like environmental ones or microfluids, generate filamental patterns which are often fractal due to the presence of chaos in the underlying advection dynamics. In such cases, hydrodynamical stirring strongly couples to the reactivity of the advected species: the outcome of the reaction is then typically different from that of the same reaction taking place in a well stirred environment. Here we review recent progress in the field which became possible via the application of methods of dynamical system theory. We put special emphasis on the derivation of effective rate equations which contain singular terms expressing the fact that the reaction takes place on a moving fractal catalists: the unstable foliation of the reaction free advection problem.