Scaling and noise in slow combustion of paper
Scaling and noise in slow combustion of paper
复制标题
纸张缓慢燃烧时的结垢和噪音
DOI:
10.1103/physrevlett.84.1946
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发表时间:
2000
影响因子:
8.6
通讯作者:
Timonen
中科院分区:
文献类型:
--
作者:
Myllys;Maunuksela;Alava;Ala;Timonen
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.