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  4. Fractal Dimension, Walk Dimension and Conductivity Exponent of Karst Networks around Tulum
 
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Fractal Dimension, Walk Dimension and Conductivity Exponent of Karst Networks around Tulum

Auteur(s)
Hendrick, M
Renard, Philippe 
Centre d'hydrogéologie et de géothermie 
Date de parution
2016
In
Frontiers in Physics, Frontiers Media, 2016/4//27
Mots-clés
  • Karst network
  • fractal
  • renormalization
  • Einstein relation
  • critical phenomena
  • Karst network

  • fractal

  • renormalization

  • Einstein relation

  • critical phenomena

Résumé
Understanding the complex structure of karst networks is a challenge. In this work, we characterize the fractal properties of some of the largest coastal karst network systems in the world. They are located near the town of Tulum (Quintana Roo, Mexico). Their fractal dimension d<sub>f</sub>, conductivity exponent μ<sup>∼</sup> and walk dimension d<sub>w</sub> are estimated using real space renormalization and numerical simulations. We obtain the following values for these exponents: d<sub>f</sub> ≈ 1.5, d<sub>w</sub> ≈ 2.4, μ<sup>∼</sup> ≈ 0.9. We observe that the Einstein relation holds for these structures μ<sup>∼</sup> ≈ −d<sub>f</sub> + d<sub>w</sub>. These results indicate that coastal karst networks can be considered as critical systems and this provides some foundations to model them within this framework.
Identifiants
https://libra.unine.ch/handle/123456789/3564
_
10.3389/fphy.2016.00027
Type de publication
journal article
Dossier(s) à télécharger
 main article: Hendrick_M-Fractal_dimension_walk_dimension-20180424.pdf (1.57 MB)
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