ISSN Online: 2377-424X
ISBN CD: 1-56700-226-9
ISBN Online: 1-56700-225-0
International Heat Transfer Conference 13
THERMALLY DEVELOPING FLOW OF POWER-LAW NON-NEWTONIAN FLUIDS IN DOUBLE-SINE DUCTS
摘要
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.