Radial injection of a hot fluid into a cold porous medium: the effects of local thermal non-equilibrium
Rees, D. A. S. and Bassom, A. P., 2010. Radial injection of a hot fluid into a cold porous medium: the effects of local thermal non-equilibrium. Computational Thermal Sciences, 2 (3), pp. 221-230.
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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.
|Creators||Rees, D. A. S.and Bassom, A. P.|
|Departments||Faculty of Engineering & Design > Mechanical Engineering|
|Research Centres||Aerospace Engineering Research Centre|
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