Loading...

Fractal structure of Hastings-Levitov patterns restricted in a sector geometry

Mohammadi, F ; Sharif University of Technology | 2010

216 Viewed
  1. Type of Document: Article
  2. DOI: 10.1088/1751-8113/43/37/375208
  3. Publisher: 2010
  4. Abstract:
  5. A generalized form of the Hastings and Levitov algorithm for the simulation of diffusion-limited aggregation (DLA) restricted in a sector geometry is studied. It is found that this generalization with uniform measure produces 'wedge-like' fractal patterns in the physical space, whose fractal dimension and anisotropy exponent depend significantly on the opening angle β of the sector. The morphological properties and the overall shape of the patterns are analyzed by computing the angular two-point density correlation function of the patterns. We also find that the fractal dimension of the patterns with sinusoidal distributed measure depends weakly on β with almost the same dimension as the radial DLA cluster. The anisotropy exponent and the visual appearance of the patterns in this case are shown to be compatible with those of the advection-diffusionlimited aggregation clusters
  6. Keywords:
  8. Source: Journal of Physics A: Mathematical and Theoretical ; Volume 43, Issue 37 , August , 2010 ; 17518113 (ISSN)
  9. URL: http://iopscience.iop.org/article/10.1088/1751-8113/43/37/375208/meta;jsessionid=A420220881CF1BBEE158FF671EF4750E.ip-10-40-1-105