0
RESEARCH PAPERS: Suspensions and Soret Effect

Soret Effect for a Ternary Mixture in Porous Cavity: Modeling With Variable Diffusion Coefficients and Viscosity

[+] Author and Article Information
T. J. Jaber, Y. Yan

Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, Canada

M. Z. Saghir1

Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, Canadazsaghir@ryerson.ca

1

Corresponding author.

J. Fluids Eng 130(8), 081703 (Aug 01, 2008) (9 pages) doi:10.1115/1.2960492 History: Received May 31, 2007; Revised June 20, 2008; Published August 01, 2008

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.

FIGURES IN THIS ARTICLE
<>
Copyright © 2008 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Schematic of the horizontal porous cavity and boundary conditions

Grahic Jump Location
Figure 2

Methane (C1) mole fraction distributions along the center of the cavity

Grahic Jump Location
Figure 3

n-butane (nC4) mole fraction distributions along the center of the cavity

Grahic Jump Location
Figure 4

Methane and n-butane compositional distributions in the x-z plane

Grahic Jump Location
Figure 5

Variation of the separation ratio with the permeability for the methane and n-butane components

Grahic Jump Location
Figure 6

Viscosity variations with temperature of dodecane and n-butane

Grahic Jump Location
Figure 7

Thermal diffusion coefficient distributions for methane and n-butane along the horizontal direction (κ=102md)

Grahic Jump Location
Figure 8

Variation of the molecular diffusion coefficient of methane along the horizontal cavity (κ=102md)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In