Diffusion Limited Aggregation
Diffusion Limited Aggregation
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DOI:
10.1142/9789812832061_0016
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发表时间:
1995-06
期刊:
影响因子:
--
通讯作者:
Daniel Platt-
中科院分区:
文献类型:
--
作者:
Daniel Platt-
Described here is a pattern produced by chaotic behavior arising from aggregating particles. “Aggregation” is a term used to describe growth arising from the agglomeration of diffusing particles. In 1981, Witten and Sander developed a computer model for aggregation starting with a single seed particle at the center of a space [1]. Their computer program introduces a new particle which moves randomly until it approaches another particle and sticks to it. The first particles attach to the seed, but soon a branched, fractal structure evolves with a dimension of about 1.7. This process is calleddiffusion limited aggregation(DLA). Since the introduction of the Witten-Sander model in 1981, considerable research has been devoted to the properties of DLA [2–6]. In the diagram here, the additional contour lines give extra information to scientists concerning the growth process.