Kinetic Roughening in Slow Combustion of Paper

Thumbnail Image

Files

PhysRevE.64.036101_1.pdf (595.14 KB)

Access rights

openAccess
publishedVersion

URL

Journal Title

Journal ISSN

Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.

Authors

Date

2001

Department

Department of Applied Physics

Major/Subject

Mcode

Degree programme

Language

en

Pages

Series

Physical Review E, Volume 64, issue 3, pp. 1-12

Abstract

Results of experiments on the dynamics and kinetic roughening of one-dimensional slow-combustion fronts in three grades of paper are reported. Extensive averaging of the data allows a detailed analysis of the spatial and temporal development of the interface fluctuations. The asymptotic scaling properties, on long length and time scales, are well described by the Kardar-Parisi-Zhang (KPZ) equation with short-range, uncorrelated noise. To obtain a more detailed picture of the strong-coupling fixed point, characteristic of the KPZ universality class, universal amplitude ratios, and the universal coupling constant are computed from the data and found to be in good agreement with theory. Below the spatial and temporal scales at which a crossover takes place to the standard KPZ behavior, the fronts display higher apparent exponents and apparent multiscaling. In this regime the interface velocities are spatially and temporally correlated, and the distribution of the magnitudes of the effective noise has a power-law tail. The relation of the observed short-range behavior and the noise as determined from the local velocity fluctuations is discussed.

Description

Keywords

interface dynamics, kinetic roughening, paper, slow combustion

Other note

DOI

10.1103/PhysRevE.64.036101

Citation

Myllys, M, Maunuksela, J, Alava, M, Ala-Nissila, T, Merikoski, J & Timonen, J 2001, 'Kinetic Roughening in Slow Combustion of Paper', Physical Review E, vol. 64, no. 3, 036101, pp. 1-12. https://doi.org/10.1103/PhysRevE.64.036101

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202510087850

Collections

[article-cris] Perustieteiden korkeakoulu / SCI