[Profil de concentration et dépôt à la paroi pour un scalaire passif à grand nombre de Schmidt dans un écoulement turbulent de canal]
Le transport d'un scalaire passif au sein d'un écoulement turbulent de canal plan est analysé de façon théorique en supposant que le nombre de Schmidt Sc, associé à la diffusion moléculaire de ce scalaire, est un grand paramètre. Dans la plus grande partie de la section transverse, la densité moyenne du scalaire est constante, mais, près des parois, une fine couche limite située à l'intérieur de la sous-couche visqueuse se développe, avec une épaisseur qui varie comme
The transport of a passive scalar within a turbulent plane channel flow has been theoretically analyzed by assuming that the Schmidt number Sc, associated to the molecular diffusivity of the passive scalar, is a large parameter. Throughout most of the channel cross-section the mean passive scalar density is constant, but adjacent to the walls a thin boundary layer develops embedded in the viscous sublayer, with a relative thickness of order
Mots-clés : Turbulence, Dépôt d'un scalaire passif, Profil turbulent de concentration, Écoulement turbulent de canal, Lois asymptotiques à très grand nombre de Schmidt
Pedro L. Garcia-Ybarra 1 ; Alfredo Pinelli 2
@article{CRMECA_2006__334_8-9_531_0,
author = {Pedro L. Garcia-Ybarra and Alfredo Pinelli},
title = {Turbulent channel flow concentration profile and wall deposition of a large {Schmidt} number passive scalar},
journal = {Comptes Rendus. M\'ecanique},
pages = {531--538},
publisher = {Elsevier},
volume = {334},
number = {8-9},
year = {2006},
doi = {10.1016/j.crme.2006.07.013},
language = {en},
}
TY - JOUR AU - Pedro L. Garcia-Ybarra AU - Alfredo Pinelli TI - Turbulent channel flow concentration profile and wall deposition of a large Schmidt number passive scalar JO - Comptes Rendus. Mécanique PY - 2006 SP - 531 EP - 538 VL - 334 IS - 8-9 PB - Elsevier DO - 10.1016/j.crme.2006.07.013 LA - en ID - CRMECA_2006__334_8-9_531_0 ER -
%0 Journal Article %A Pedro L. Garcia-Ybarra %A Alfredo Pinelli %T Turbulent channel flow concentration profile and wall deposition of a large Schmidt number passive scalar %J Comptes Rendus. Mécanique %D 2006 %P 531-538 %V 334 %N 8-9 %I Elsevier %R 10.1016/j.crme.2006.07.013 %G en %F CRMECA_2006__334_8-9_531_0
Pedro L. Garcia-Ybarra; Alfredo Pinelli. Turbulent channel flow concentration profile and wall deposition of a large Schmidt number passive scalar. Comptes Rendus. Mécanique, Observation, analysis and modelling in complex fluid media, Volume 334 (2006) no. 8-9, pp. 531-538. doi : 10.1016/j.crme.2006.07.013. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2006.07.013/
[1] Statistical Fluid Mechanics: Mechanics of Turbulence, vol. 1, MIT Press, 1987
[2] The near wall mixing length formulation revisited, Int. J. Heat Mass Transfer, Volume 43 (2000), pp. 3743-3746
[3] The effect of grid size near-wall
[4] Fluid Mechanics, Pergamon Press, 1987
[5] Physicochemical Hydrodynamics, Prentice-Hall, 1962
[6] Turbulent Flows, Cambridge Univ. Press, 2000
[7] Turbulent mass transfer rates to a wall for large Schmidt numbers, AIChE J., Volume 23 (1977), pp. 28-37
[8] Transport Processes in Chemically Reacting Flow Systems, Dover, 2000
[9] Limiting relation for the eddy diffusivity close to a wall, AIChE J., Volume 13 (1967), pp. 689-696
[10] Advanced Mathematical Methods for Scientists and Engineers, McGraw-Hill, 1978
[11] Perturbation Methods in Fluid Mechanics, Academic Press, 1964
[12] Turbulence statistics in fully developed channel flow, J. Fluid Mech., Volume 177 (1987), pp. 136-166
[13] The autonomous cycle of near-wall turbulence, J. Fluid Mech., Volume 389 (1999), pp. 335-359
[14] Thermal (Soret) diffusion effects on interfacial mass transport rates, Phys. Chem. Hydrodynam., Volume 1 (1980), pp. 159-185
[15] Mass transfer dominated by thermal diffusion in laminar boundary layers, J. Fluid Mech., Volume 336 (1997), pp. 379-409
- Modelling high Schmidt number turbulent mass transfer, International Journal of Heat and Fluid Flow, Volume 51 (2015), p. 42 | DOI:10.1016/j.ijheatfluidflow.2014.10.025
- The role of geometry in rough wall turbulent mass transfer, Heat and Mass Transfer, Volume 49 (2013) no. 8, p. 1191 | DOI:10.1007/s00231-013-1165-4
- Asymptotic solutions for turbulent mass transfer augmented by a first order chemical reaction, International Journal of Heat and Mass Transfer, Volume 55 (2012) no. 23-24, p. 6485 | DOI:10.1016/j.ijheatmasstransfer.2012.06.048
- Asymptotic solutions for turbulent mass transfer at high Schmidt number, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Volume 468 (2012) no. 2142, p. 1676 | DOI:10.1098/rspa.2011.0538
- Simplified Numerical and Analytical Approach for Solutes in Turbulent Flow Reacting with Smooth Pipe Walls, Journal of Hydraulic Engineering, Volume 136 (2010) no. 9, p. 626 | DOI:10.1061/(asce)hy.1943-7900.0000229
- Near-wall turbulent transport of large-Schmidt-number passive scalars, Physical Review E, Volume 79 (2009) no. 6 | DOI:10.1103/physreve.79.067302
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