Publicado 8 números por año
ISSN Imprimir: 1065-5131
ISSN En Línea: 1563-5074
Indexed in
Laminar Flow and Heat Transfer in Periodic Serpentine Mini-Channels
SINOPSIS
This paper presents numerical studies into fully developed laminar flows and heat transfer in periodic serpentine ducts with circular, semi-circular, and square cross sections. These studies are of relevance to laminar duct flows with zero wall slip, and geometries analogous to those found in compact plate heat exchangers. Flow and heat transfer characteristics are reported for a fixed geometry with a constant heat flux applied at the walls over a range of Reynolds numbers (Re = 5−200) and Prandtl numbers (Pr = 0.7−100). It was found that for water (Pr = 6.13) heat transfer is enhanced by a factor of between 2.5 and 3 depending on the geometry. Pressure drop penalties and heat transfer enhancements within a single repeating module are calculated relative to the results obtained for fully developed flows in a straight section of pipe of equal path length.
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