第55回「非線形・統計力学とその周辺」セミナーのご案内

日時：2004年3月19日（月）15:00から

場所：京都大学工学部総合校舎２０７室

講演者：Prof. Tamas Tel （Eotvos Lorand Univ.）

講演題目： Chemical and Biological Activity in Flows

講演要旨：

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.