Laminar forced convective heat transfer of power law fluids in isosceles triangular ducts with peripheral wall conduction

The results of an investigation are presented for non-Newtonian fluid heat transfer studies in noncircular ducts. Laminar fully developed flow of a purely viscous fluid is analyzed with two power law fluid models in isosceles triangular ducts. Three major components are covered: (1) The temperature distributions and heat transfer coefficients for a hydrodynamically and thermally fully developed newtonian fluid for the boundary condition of constant axial heat flux with peripheral wall conduction; (2) the velocity distributions and the relationship between the friction factor and the generalized Reynolds number for fully developed power law fluids, two rheological models, as well as Kozicki's geometric parameter method, are in agreement with Chang's experimental data within their ranges; and (3) The temperature distributions for a hydrodynamically and thermally fully developed power law fluid for constant axial heat flux with peripheral wall conduction.