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A permeability model for power-law fluids in fractal porous media composed of arbitrary cross-section capillaries

Author

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  • Wang, Shifang
  • Wu, Tao
  • Qi, Hongyan
  • Zheng, Qiusha
  • Zheng, Qian

Abstract

The fractal theory and technology has been applied to determine the flow rate, the average flow velocity, and the effective permeability for the power-law fluid in porous media composed of a number of tortuous capillaries/pores with arbitrary shapes, incorporating the tortuosity characteristic of flow paths. The fractal permeability and average flow velocity expressions are found to be a function of geometrical shape factors of capillaries, material constants, the fractal dimensions, microstructural parameters. The effects of the porosity, the tortuosity fractal dimension, material constants, and geometrical shape factors on the effective permeability are also analyzed in detail. To verify the validity of the present model, our proposed model is compared with the available macroscopic model and experimental data and there is good agreement between them.

Suggested Citation

  • Wang, Shifang & Wu, Tao & Qi, Hongyan & Zheng, Qiusha & Zheng, Qian, 2015. "A permeability model for power-law fluids in fractal porous media composed of arbitrary cross-section capillaries," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 437(C), pages 12-20.
    • Handle: RePEc:eee:phsmap:v:437:y:2015:i:c:p:12-20
    DOI: 10.1016/j.physa.2015.05.089
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    References listed on IDEAS

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    1. Zheng, Qian & Xu, Jian & Yang, Bin & Yu, Boming, 2013. "Research on the effective gas diffusion coefficient in dry porous media embedded with a fractal-like tree network," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(6), pages 1557-1566.
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    Cited by:

    1. Lahmiri, Salim, 2016. "Clustering of Casablanca stock market based on hurst exponent estimates," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 456(C), pages 310-318.

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