FLUID MOTION IN THE FLUID/POROUS MEDIUM INTER-REGION
| Autor: | J.A. Ochoa-Tapia, F.J. Valdés-Parada, B. Goyeau, D. Lasseux |
|---|---|
| Přispěvatelé: | Institut de Mécanique et d'Ingénierie de Bordeaux (I2M), École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut National de la Recherche Agronomique (INRA), Universidad Autonoma Metropolitana Unidad Iztapalapa (UAM), Universidad Autonoma Metropolitana - Iztapalapa, Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion (EM2C), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Universidad Autonoma Metropolitana, Unidad Iztapalapa (UAM), Université Paris Saclay (COmUE)-Centre National de la Recherche Scientifique (CNRS)-CentraleSupélec, Goyeau, Benoit |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
[SPI] Engineering Sciences [physics]
[SPI.FLUID]Engineering Sciences [physics]/Reactive fluid environment Ingeniería scale simulations Average momentum transport model pore-scale simulations boundary layer average momentum transport model [SPI]Engineering Sciences [physics] [CHIM.GENI]Chemical Sciences/Chemical engineering [SDU]Sciences of the Universe [physics] [SDE]Environmental Sciences [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering pore ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Revista Mexicana De Ingenieria Quimica Revista Mexicana De Ingenieria Quimica, 2017 REVISTA MEXICANA DE INGENIERIA QUIMICA REVISTA MEXICANA DE INGENIERIA QUIMICA, 2017, 16 (3), pp.923-938 Universidad Autónoma Metropolitana UAM Redalyc-UAM Revista Mexicana de Ingeniería Química (México) Num.3 Vol.16 |
| ISSN: | 1665-2738 |
| Popis: | International audience; In many transport and reaction processes of interest in chemical engineering, rapid velocity variations are known to take placenear porous media boundaries. However, modeling the extension of the resulting boundary layers has been the subject of a longdebate in the literature. In specific, modeling of momentum transport between a porous medium and a fluid has suggested theinclusion of additional terms to Darcy’s law. The origin of such corrections may be regarded as a result of an upscaling methodused to derive the governing equation at the Darcy scale. To address this issue, in this work we perform pore-scale simulationsin an idealized porous medium model consisting in arrays of straight channels that allow obtaining analytical expressions for theDarcy-scale velocity profiles by performing an averaging (instead of an upscaling) operation. Our results show the dependence ofthe size and shape of transition layers with the size of the averaging domain when studying momentum transport between a porousmedium and a fluid but also near the porous medium-wall boundary.With this low-computationally demanding methodology, wecan conclude that the existence of an average velocity boundary layer, and thus the pertinence of correction terms to Darcy’s law,is certainly justified. |
| Databáze: | OpenAIRE |
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