Asymptotic Nusselt numbers for dissipative non-Newtonian flow through ducts
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- Payvar, P. Appl. Sci. Res. (1973) 27: 297. doi:10.1007/BF00382493
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General expressions for fully developed temperature profiles and Nusselt numbers are obtained for heat transfer to non-Newtonian fluid flow between parallel plates and through circular pipes subjected to a uniform wall heat flux. The effect of viscous dissipation is taken into account since it may often be significant in the flow of non-Newtonian fluids. Asymptotic Nusselt numbers for three widely used models, i.e. the power law fluid, the Bingham plastic, and the Ellis fluid are obtained as specific results.