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Journal of Applied Fluid Mechanics، جلد ۱۳، شماره ۶، صفحات ۱۶۷۵-۱۶۸۲
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عنوان انگلیسی Blood Flow in Prefractal Media: Rheological Model Approaches and Sensitivity Analysis
چکیده انگلیسی مقاله The development of microfluidic media supporting blood flow is significant for many applications. Prefractal models have considerable potential for contributing to the study of flow in these media, since information about scale complexity is captured by a small number of parameters. Flows of power law fluids, Bingham fluids and described by the marginal zone theory are considered. In this study, physically based models for estimating the permeability of a microfluidic porous materials are presented. Models are derived assuming that media are represented by a bundle of tortuous capillary tubes with fractal pore-size distributions. They are expressed in terms of porosity, microstructural parameters and fluid characteristics. Expressions for the flow resistance through single tortuous tubes, and the relationship between fluid velocity through tortuous tubes and through straight tubes, in terms of fractal dimensions, are also obtained.
کلیدواژه‌های انگلیسی مقاله Tortuous capillaries, Flow resistance, Permeability, Blood flow, Fractal, Prefractal
نویسندگان مقاله A. Miguel |
Department of Physics, School of Science and Technology, University of Evora, Evora, Portugal Institute of Earth Sciences (ICT), Pole of Evora, 7000-671, Evora, Portugal

نشانی اینترنتی https://www.jafmonline.net/article_1037_086e7efaa648d4b91d1f6a254950b460.pdf
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