Mixed convection in horizontal channels with discrete material and top exhaust

Mixed convection in a horizontal channel loaded with discrete material and equipped with a top exhaust was studied experimentally and analytically. The steady flow was two-dimensional 2D, while observed unsteady convection, triggered at a critical Richardson value, was highly three-dimensional 3D. M...

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Bibliographic Details
Published inInternational journal of heat and mass transfer Vol. 38; no. 14; pp. 2519 - 2527
Main Authors Bergman, T.L., Son, Y.S.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.09.1995
Elsevier
Subjects
Applied sciences
Convective and constrained heat transfer
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Heat transfer
Natural convection
Other techniques and industries
Physics
Temperature distribution
Annealing
Material processing
Experimental study
Horizontal pipe
Combined convection
Heating
Oscillatory instability
Enamelling
Belt conveyors
Numerical simulation
Baking
Heat transfer
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Summary:Mixed convection in a horizontal channel loaded with discrete material and equipped with a top exhaust was studied experimentally and analytically. The steady flow was two-dimensional 2D, while observed unsteady convection, triggered at a critical Richardson value, was highly three-dimensional 3D. Measured temperatures and those predicted with a 2D numerical model are in good agreement. The model, however, underestimates the onset of the thermally-induced transition to unsteady convection.
ISSN:0017-9310
1879-2189
DOI:10.1016/0017-9310(95)00018-5