Turbulent Heat Transfer in Non-Newtonian Fluids

Abstract

The heat transfer coefficients of the turbulent flow of not only pseudoplastic, but dilatant and also Bingham fluids in a rectangular duct and in a circular tube were measured experimentally, and correlated by the same characteristic idea with a modified Chilton-Colburn analogy. The equations of heat transfer coefficients thus derived were shown to represent the data well. Moreover, the temperature and velocity profiles in the rectangular duct were measured to compute the eddy diffusivities for momentum and for heat in Newtonian and non-Newtonian fluids, and the correlations of the eddy diffusivities were presented.