Scaling and noise in slow combustion of paper

We present results of high resolution experiments on kinetic roughening of slow combustion fronts in paper, focusing on short length and time scales. Using three different grades of paper, we find that the combustion fronts show apparent spatial and temporal multiscaling at short scales. The scaling...

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Bibliographic Details
Published in:Physical review letters 2000-02, Vol.84 (9), p.1946-1949
Main Authors: Myllys, M, Maunuksela, J, Alava, MJ, Ala-Nissila, T, Timonen, J
Format: Article
Language:English
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Summary:We present results of high resolution experiments on kinetic roughening of slow combustion fronts in paper, focusing on short length and time scales. Using three different grades of paper, we find that the combustion fronts show apparent spatial and temporal multiscaling at short scales. The scaling exponents decrease as a function of the order of the corresponding correlation functions. The noise affecting the fronts reveals short range temporal and spatial correlations, and non-Gaussian noise amplitudes. Our results imply that the overall behavior of slow combustion fronts cannot be explained by standard theories of kinetic roughening.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.84.1946