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CPM Seminar
Theory, simulations, and experiments Tapio Ala-Nissila
Helsinki Institute of Physics and Laboratory of Physics I will review theoretical and experimental work on the dynamics and kinetic roughening of slow combustion fronts in paper. At large scales, the kinetic roughening is well described by the Kardar-Parisi-Zhang equation with thermal (annealed) noise. This is predicted by various theoretical models, and confirmed by careful experiments. At short time and length scales, the experimentally measured scaling exponents show apparent multiscaling behavior, and the effective noise at the interface has nontrivial correlations. These results indicate that the short-range behavior cannot be described by standard theories of kinetic roughening. Finally, I will also discuss new results on the behavior of the fronts approaching the pinning limit.
Friday, May 19th 2000, 15:30 |