Phys. Rev. E 49, R3598 - R3601 (1994)Convex to concave transition and invariant distribution of segment lengths in many-walker anisotropic diffusion-limited aggregation |
Ofer Shochet
School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
Received 31 January 1994
We present numerical studies of an on-lattice many-walker diffusion-limited aggregation model. For asymptotic late stage growth, the ensemble averaged envelope exhibits a convex to concave transition. This transition resembles morphology transitions in other diffusion-limited systems but we do not detect a change in the functional form of the growth velocity. We also find that the distribution of the segment lengths is invariant under changes of the supersaturation.
©1994 The American Physical Society
URL: http://link.aps.org/abstract/PRE/v49/pR3598
DOI: 10.1103/PhysRevE.49.R3598
PACS: 64.60.Qb, 05.70.Ln, 64.70.Hz, 02.70.Rw
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