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| Titre: | Impact of wall temperature difference on heat and mass transfers in gray and non-gray gas mixtures |
| Auteur(s): | Laouar-Meftah, Siham
Lemonnier, Denis
Laouti, Amina |
| Mots-clés: | Convection flow
Double diffusion
Heat-mass
Transfer
Radiative transfer
Radiative transfer
SLW model |
| Date de publication: | 2022 |
| Editeur: | Taylor and Francis |
| Collection/Numéro: | Numerical heat transfer, part a: applications An International Journal of Computation and Methodology; |
| Résumé: | This study deals with the numerical investigation of the effect of wall temperature
difference (DTÞ on heat and mass transfers in a differentially
heated square cavity, filled with gas mixtures (air-CO2 or air-H2O) at a fixed
average concentration of pollutant (15% CO2 or H2O). The governing equations
are solved by a finite-difference method and the prediction of radiative
transfer in molecular gases is taken into account by the SLW model of
Denison and Webb. The results are graphically displayed and discussed for
two values of DT (5 C and 50 C), when the concentration and temperature
gradient generate opposing motions. The results obtained with a non-gray
gas are also related to those of a gray gas model, in order to investigate if
this assumption is appropriate to be used instead of non-gray calculations. |
| URI/URL: | https://doi.org/10.1080/10407782.2022.2148029
http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/11554 |
| Collection(s) : | Publications Internationales
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