• ISSN 0258-2724
  • CN 51-1277/U
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Volume 19 Issue 6
Dec.  2006
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Article Contents
SU Fenghuan, YAO Lingkan, GAO Zhaoning. Application of Fractal Cellular Automata to Self-Organized Criticality[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 675-679.
Citation: SU Fenghuan, YAO Lingkan, GAO Zhaoning. Application of Fractal Cellular Automata to Self-Organized Criticality[J]. Journal of Southwest Jiaotong University, 2006, 19(6): 675-679.

Application of Fractal Cellular Automata to Self-Organized Criticality

  • Received Date: 13 Mar 2006
  • Publish Date: 25 Dec 2006
  • Based on a fractal cellular automata model,the mechanism of self-organized criticality(SOC) of granular mixtures was investigated.The present sandpile experiments with an one-side slope show that the self-organized criticality of granular mixtures is strongly influenced by the non-uniform degree of granular materials.The fractal dimension of grading was calculated using the fractal theory. The results show that there exists a fractal feature in the grading of sandpiles with SOC.So it was supposed that if the fabric characteristics of a system has a fractal nature,a large-dimension non-uniform sandpile,as such a system,presents SOC.A cellular automata model describing non-uniform coefficient and fractal fabric characteristic was built to explain the assumption.Through numerical simulations it was found that a sandpile model takes on SOC when cellular arrangement submits to a fractal distribution to testify the assumption.A discussion about the criterion of SOC shows that the fractal fabric characteristics of a system is the necessary condition for SOC of large-dimension granular mixtures.

     

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