Diffusion-Limited Aggregation with Anisotropic Sticking Probability: A Tentative Model for River Networks
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概要
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Diffusion-limited aggregation (DLA) model with anisotropic sticking probability P,is computer-simulated on two dimensional square lattice. The cluster grows from aseed particle at the origin in the positive y area with the absorption-type boundaryalong ,v-axis. The cluster is found to grow anisotropically as R77 -N'/7 and 7?. -,V",where 7?. and Rj are the radii of gyration of the cluster along x- and .);-axes, respec-tively, and N is the particle number constituting the cluster. The two exponents areshown to become assymptotically v77 = 2 /3, v. = 1 /3 whenever the sticking anisotropyexists. It is also found that the present model is fairly consistent with Hack's law ofriver networks, suggesting that it is a good candidate of a prototype model for theevolution of the river network.
- 社団法人日本物理学会の論文
- 1986-10-15
著者
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MATSUSHITA Mitsugu
Research Institute of Electrical Communication,Tohoku University
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KONDOH Hiroshi
Research Institute of Electrical Communication,Tohoku University
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Matsushita Mitsugu
Research Institute Of Electrical Communication Tohoku University
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Kondoh Hiroshi
Research Institute Electrical Communication Tohoku University
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Matsushita Mitsugu
Research Institute Electrical Communication Tohoku University
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