Various Flow Regimes and Permeabilities for Packed-Spheres Porous Media

Özer Bağcı; Nihad Dukhan; Mustafa Özdemir

doi:10.4028/www.scientific.net/DDF.364.1

Paper Titles

Preface

Various Flow Regimes and Permeabilities for Packed-Spheres Porous Media
p.1

Heat and Mass Transfer and Energy Aspects in Combined Infrared-Convective Drying of Bee-Pollen
p.9

Physical and Chemical Characterization of Raw and Mechanochemically Treated Humine and Humic Acid from Brown Coals
p.18

Comparison of Electrochemical and Chemical Corrosion Behavior of MRI 230D Magnesium Alloy with and without Plasma Electrolytic Oxidation Treatment
p.27

Adsorption of Nitrogen Contaminants in the Light Gas Oil (LGO) and Light Cycle Oil (LCO) to Produce Diesel with Low Sulfur
p.35

Microgeometry Modelling of Magnesium Alloy Polished Surfaces by Means of Cone-Based Manifolds
p.44

Observation of Phase Transformation in Shape Memory Alloy NiTi Wire during In Vitro Simulation of Orthodontic Treatment
p.61

The Interpretation of Marker Experiment Conducted during Formation of Higher Oxide on the Surface of Lower Oxide
p.71

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 364Various Flow Regimes and Permeabilities for...

Various Flow Regimes and Permeabilities for Packed-Spheres Porous Media

Abstract:

Flow in porous media occurs in many naturally-occurring and engineered systems. One of the key properties for understanding the fluid flow and pressure drop in porous media is permeability, which is varies widely among researchers. The current work presents systematic experimental data for packed spheres of uniform size (3 mm) having a porosity of 36.6% subjected to water flow. The experiments covered a sufficiently broad range of flow Reynolds number such that all flow regimes are encountered: pre-Darcy, Darcy, Forchheimer and Turbulent. The pre-Darcy regime is very scarce or non-present in the literature. As a necessary initial step, flow regimes were identified and different permeabilities exhibited by the porous medium in each flow regime were calculated. The length scales in defining the Reynolds number included the diameter of the sphere and the square root of the various permeabilities in order to study the transitional Reynolds numbers among the flow regimes. It is shown that the permeability in the Darcy regime is most appropriate and produces results consistent with accepted understanding in the literature of porous media.

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Defect and Diffusion Forum (Volume 364)

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1-8

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https://doi.org/10.4028/www.scientific.net/DDF.364.1

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June 2015

Authors:

Özer Bağcı, Nihad Dukhan, Mustafa Özdemir

Keywords:

Permeability, Porous Media, Pressure Drop, Regime Changes

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