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Radial injection of a hot fluid into a cold porous medium: the effects of local thermal nonequilibrium

Citation

Rees, A and Bassom, AP, Radial injection of a hot fluid into a cold porous medium: the effects of local thermal nonequilibrium, Computational Thermal Sciences, 2, (3) pp. 221-230. ISSN 1940-2503 (2010) [Refereed Article]

DOI: doi:10.1615/ComputThermalScien.v2.i3.20

Abstract

We consider the manner in which local thermal nonequilibrium effects influence the development of the thermal field when a hot fluid is injected radially into a cold porous medium. A purely forced convection situation is considered, and the evolving thermal fields depend on four non-dimensional parameters, including the Péclet number and the nondimensional interphase heat-transfer coefficient, H. In this primarily numerical study we find that local thermal equilibrium is always attained eventually, but after a time which depends strongly on the value of H. When the Péclet number is large a thermal shock wave is formed within the fluid phase which degrades slowly by imparting heat to the solid phase.

Item Details

Item Type:Refereed Article
Keywords:forced convection, heat transfer, local thermal nonequilibrium, Keller box method
Research Division:Mathematical Sciences
Research Group:Applied Mathematics
Research Field:Theoretical and Applied Mechanics
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Mathematical Sciences
Author:Bassom, AP (Professor Andrew Bassom)
ID Code:105750
Year Published:2010
Deposited By:Mathematics and Physics
Deposited On:2016-01-14
Last Modified:2016-07-06
Downloads:0

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