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ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

International Heat Transfer Conference 13
August, 13-18, 2006, Sydney, Australia

THERMALLY DEVELOPING FLOW OF POWER-LAW NON-NEWTONIAN FLUIDS IN DOUBLE-SINE DUCTS

Get access (open in a dialog) DOI: 10.1615/IHTC13.p20.90
12 pages

Аннотация

A hybrid analytical-numerical approach based on the Generalized Integral Transform Technique (GITT) is employed to solve the momentum and energy equations, in thermally developing lammar flow of power-law non-Newtonian fluids inside double-sine ducts. Constant wall temperature is used as thermal boundary condition. Reference results are established for quantities of practical interest, such as the product of the Fanning friction factor-Reynolds number, dimensionless average temperature and Nusselt numbers within the thermal entry region, for the range of flow behavior index (0.6 < n < 1.5) and aspect ratio (0.5 < γ < 2). Also, critical comparisons are made with results available in the literature for direct numerical and approximate approaches.