| Titre : | Soret effect for a ternary mixture in porous cavity : modeling with variable diffusion coefficients and viscosity (2009) |
| Auteurs : | T. J. Jaber, Auteur ; Y. Yan, Auteur ; M. Z. Saghir, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Transactions of the ASME . Journal of fluids engineering (Vol. 130 N° 8, Août 2008) |
| Article en page(s) : | 9 p. |
| Note générale : | Fluids engineering |
| Langues : | Anglais |
| Tags : | Diffusion (physics) ; permeability ; viscosity ; cavities ; thermal diffusion ; temperature ; methane ; convection |
| Résumé : | A porous cavity filled with methane (C1), n-butane (nC4), and dodecane (C12) at a pressure of 35.0MPa is used to investigate numerically the flow interaction due to the presence of thermodiffusion and buoyancy forces. A lateral heating condition is applied with the left wall maintained at 10°C and the right wall at 50°C. The molecular diffusion and thermal diffusion coefficients are functions of temperature, concentration, and viscosity of mixture components. It has been found that for permeability below 200md the thermodiffusion is dominant; and above this level, buoyancy convection becomes the dominant mechanism. The variation of viscosity plays an important role on the molecular and thermal diffusion. |
| En ligne : | http://fluidsengineering.asmedigitalcollection.asme.org/Issue.aspx?issueID=27329&direction=P |
