Analysis of Variable Porosity, Thermal Dispersion, and Local Thermal Nonequilibrium on Free Surface Flows Through Porous Media-Reference-Cited by-同舟云学术

Analysis of Variable Porosity, Thermal Dispersion, and Local Thermal Nonequilibrium on Free Surface Flows Through Porous Media

Published:2004-06-01 Issue:3 Volume:126 Page:389-399
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Alazmi Bader¹,Vafai Kambiz²

Affiliation:

1. Department of Mechanical Engineering, Kuwait University, P.O. Box 5969, Safat 13060 Kuwait

2. University of California, Riverside, Department of Mechanical Engineering, A363 Bourns Hall, Riverside, CA 92521-0425

Abstract

Characteristics of momentum and energy transport for free surface flows through porous media are explored in this study. Effects of variable porosity and an impermeable boundary on the free surface front are analyzed. In addition, effects of thermal dispersion and local thermal nonequilibrium (LTNE) are also analyzed. Pertinent parameters such as porosity, Darcy number, inertia parameter, Reynolds number, particle diameter, and solid-to-fluid conductivity ratio are used to investigate the significance of the above mentioned effects. Results show that considering the effect of variable porosity is significant only in the neighborhood of the solid boundary. The range of parameters which enhance the dispersion and LTNE effects are prescribed. Finally, it is shown that adding the effect of thermal dispersion to LTNE increases the sensitivity of LTNE between the two phases.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/126/3/389/5790890/389_1.pdf

Reference18 articles.

1. Muskat, M., 1937, The Flow of Homogeneous Fluids Through Porous Media, Edwards, Ann Arbor, MI.

2. Srinivasan, V., and Vafai, K., 1994, “Analysis of Linear Encroachment in Two-Immiscible Fluid Systems in a Porous Medium,” ASME J. Fluids Eng., 116, pp. 135–139.

3. Chen, S. C., and Vafai, K., 1996, “Analysis of Free Surface Momentum and Energy Transport in Porous Media,” Numer. Heat Transfer, Part A, 29, pp. 281–296.

4. Chen, S. C., and Vafai, K., 1997, “Non-Darcian Surface Tension Effects on Free Surface Transport in Porous Media,” Numer. Heat Transfer, Part A, 31, pp. 235–254.

5. Vafai, K. , 1984, “Convective Flow and Heat Transfer in Variable-Porosity Media,” J. Fluid Mech., 147, pp. 233–259.

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