Title

Numerical and experimental prediction of transitional characteristics of flow and heat transfer in an array of heated blocks

Document Type

Article

Date of Original Version

12-1-1996

Abstract

Three-dimensional numerical analysis, for transitional characteristics of fluid flow and heat transfer in periodic fully developed region of an array of the heated square blocks deployed along one wall of the parallel plates duct, is carried out by using Lam-Brernhorst low-Reynolds-number two equation turbulence model. Computations were performed for Prandtl number of 0.7, in the Reynolds number range of 200 to 2000 and for two sets of geometric parameters characterizing the array. The predicted transitional Reynolds number is lower than the value for the parallel plate duct and it decreases with increasing the height above the module. Experiments were also performed for pressure drop measurements and for flow visualization and the results were compared with the numerical predictions.

Publication Title

American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD

Volume

324

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