The authors introduce a new approach to the analysis of growing unstable interfaces in order to characterise the degree of their randomness. Highly ramified viscous fingering patterns are digitised and the related surface curvature data are evaluated using techniques common in the investigations of dynamical systems. Their results for the associated correlation dimension indicate that the experimentally observed deterministic patterns correspond to a spatial behaviour which is more complex than a low-dimensional chaotic geometry.
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Physics and Astronomy(all)