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
复制
发表时间:
2000
影响因子:
8.6
通讯作者:
Timonen
Timonen
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Myllys;Maunuksela;Alava;Ala;Timonen

文献摘要

被引文献

相似文献

我们目前的高分辨率实验结果的动力学粗化的缓慢燃烧前的文件,专注于短的长度和时间尺度。使用三种不同等级的纸张,我们发现,燃烧锋表现出明显的空间和时间的多尺度在短尺度。标度指数作为相应相关函数的阶数的函数而减小。影响波前的噪声揭示了短距离的时间和空间相关性,以及非高斯噪声幅度。我们的研究结果意味着,缓慢燃烧锋的整体行为不能用动力学粗糙化的标准理论来解释。
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.