A General Macroscopic Model for Turbulent Flow in Porous MediaSource: Journal of Fluids Engineering:;2018:;volume( 140 ):;issue: 001::page 11201Author:Jouybari, Nima F.
,
Maerefat, Mehdi
,
Staffan Lundström, T.
,
Nimvari, Majid E.
,
Gholami, Zahra
DOI: 10.1115/1.4037677Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: 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.
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| contributor author | Jouybari, Nima F. | |
| contributor author | Maerefat, Mehdi | |
| contributor author | Staffan Lundström, T. | |
| contributor author | Nimvari, Majid E. | |
| contributor author | Gholami, Zahra | |
| date accessioned | 2019-02-28T10:59:36Z | |
| date available | 2019-02-28T10:59:36Z | |
| date copyright | 9/20/2017 12:00:00 AM | |
| date issued | 2018 | |
| identifier issn | 0098-2202 | |
| identifier other | fe_140_01_011201.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4251514 | |
| description abstract | 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. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A General Macroscopic Model for Turbulent Flow in Porous Media | |
| type | Journal Paper | |
| journal volume | 140 | |
| journal issue | 1 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.4037677 | |
| journal fristpage | 11201 | |
| journal lastpage | 011201-9 | |
| tree | Journal of Fluids Engineering:;2018:;volume( 140 ):;issue: 001 | |
| contenttype | Fulltext |