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Transient forced convection in the entrance region of a porous tube
Author(s) -
AlNimr M. A.,
Aldoss T.,
Naji M. I.
Publication year - 1994
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450720211
Subject(s) - forced convection , nusselt number , mechanics , materials science , transient (computer programming) , porous medium , thermal , heat transfer , thermodynamics , combined forced and natural convection , tube (container) , boundary layer , convection , mixing (physics) , natural convection , porosity , reynolds number , physics , composite material , turbulence , quantum mechanics , computer science , operating system
The problem of transient forced convection in the entrance region of a cylindrical porous medium with developing thermal boundary layer is investigated. The hydrodynamic behaviour of the flow is assumed to be steady and fully developed, and both Darcian and non‐Darcian effects on the flow are considered. Thermal transients are created by a step change in the temperature of the tube wall. The effect of different fluid and solid‐matrix parameters on Nusselt number, thermal entrance length, total heat absorbed and mixing cup temperature are considered.