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Tortuosity for streamlines in porous media
Authors:Kou Jian-Long  Tang Xue-Ming  Zhang Hai-Yan  Lu Hang-Jun  Wu Feng-Min  Xu You-Sheng  Dong Yong-Sheng
Institution:1. College of Mathematics, Physics and Information Engineering, Zhejiang Normal University, Jinhua 321004, China;2. Department of Physics, Jining Teachers College, Jining 012000, Inner Mongolia Autonomous Region, China
Abstract:An analysis of tortuosity for streamlines in porous media is presented by coupling the circle and square models. It is assumed that some particles in porous media do not overlap and that fluid in porous media is incompressible. The relationship between tortuosity and porosity is attained with different configurations by using a statistical method. In addition, the tortuosity fractal dimension is expressed as a function of porosity. Those correlations do not include any empirical constant. The percolation threshold and tortuosity fractal dimension threshold of porous media are also presented as: φc=0.32, DTc=1.07. The predicted correlations of the tortuosity and the porosity agree well with the existing experimental and simulated results.
Keywords:tortuosity  tortuosity fractal dimension  porous media
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