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A General Macroscop...
A General Macroscopic Model for Turbulent Flow in Porous Media
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- Jouybari, Nima (författare)
- Department of Mechanical Engineering, Tarbiat Modares University
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- Maerefat, Mehdi (författare)
- Department of Mechanical Engineering, Tarbiat Modares University
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- Lundström, T. Staffan (författare)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
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- Eshagh Nimvari, Majid (författare)
- Faculty of Engineering Technologies, Amol University of Special Modern Technologies, Amol
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- Gholami, Zahra (författare)
- Department of Food and Agriculture, Standard Research Institute, Karaj
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(creator_code:org_t)
- 2017-09-20
- 2018
- Engelska.
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Ingår i: Journal of Fluids Engineering. - : The American Society of Mechanical Engineers (ASME). - 0098-2202 .- 1528-901X. ; 140:1
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Strömningslära
- Fluid Mechanics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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