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A General Macroscopic Model for Turbulent Flow in Porous Media
Department of Mechanical Engineering, Tarbiat Modares University.
Department of Mechanical Engineering, Tarbiat Modares University.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
Faculty of Engineering Technologies, Amol University of Special Modern Technologies, Amol.
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2017 (English)In: Journal of Fluids Engineering - Trancactions of The ASME, ISSN 0098-2202, E-ISSN 1528-901XArticle in journal (Refereed) Accepted
Abstract [en]

The present study deals with the generalization of a macroscopic turbulence model in porous media using a capillary model. The additional source terms associated with the production and dissipation of turbulent kinetic energy due to the presence of solid matrix are calculated using the capillary model. The present model does not require any prior pore scale simulation of turbulent flow in a specific porous geometry in order to close the macroscopic turbulence equations. Validation of the results in packed beds, periodic arrangement of square cylinders, synthetic foams and longitudinal flows such as pipes, channels and rod bundles against available data in the literature reveals the ability of the present model in predicting turbulent flow characteristics in different types of porous media. Transition to the fully turbulent regime in porous media and different approaches to treat this phenomenon are also discussed in the present study. Finally, the general model is modified so that it can be applied to lower Reynolds numbers below the range of fully turbulent regime in porous media.

Place, publisher, year, edition, pages
ASME Press, 2017.
National Category
Engineering and Technology Fluid Mechanics and Acoustics
Research subject
Fluid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-65199DOI: 10.1115/1.4037677OAI: oai:DiVA.org:ltu-65199DiVA: diva2:1134429
Available from: 2017-08-19 Created: 2017-08-19 Last updated: 2017-08-29

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