Radial injection of a hot fluid into a cold porous medium: the effects of local thermal non-equilibrium

D Andrew S Rees, A P Bassom

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)221-230
Number of pages10
JournalComputational Thermal Sciences
Volume2
Issue number3
DOIs
Publication statusPublished - 2010

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Peclet number
Non-equilibrium
Porous Media
Porous materials
Injection
injection
Fluid
thermal shock
Fluids
fluids
forced convection
heat transfer coefficients
Thermal Shock
solid phases
shock waves
Forced Convection
Local Equilibrium
Heat Transfer Coefficient
Thermal Equilibrium
Shock Waves

Cite this

Radial injection of a hot fluid into a cold porous medium: the effects of local thermal non-equilibrium. / Rees, D Andrew S; Bassom, A P.

In: Computational Thermal Sciences, Vol. 2, No. 3, 2010, p. 221-230.

Research output: Contribution to journalArticle

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