Abstract
Abstract The problem of heat transfer in liquid metals is studied for the case of a fully developed turbulent flow in cylindrical pipes of constant diameter, the fluid under consideration being heated (or cooled) by a constant and uniform heat input at the wall. In the analysis, the similarity theory between heat and momentum transfer is used. A theory is presented which gives the ratio of eddy diffusivities for heat and momentum transfer as a function of the Prandtl modulus. It is shown that heat transfer in liquid metals can be analyzed universally in terms of a dimensionless parameter called the “generalized Peclet modulus” and defined by the relationNPe*=(NRe*)(NPr*)=[NRe(f/2)1/2](NPrσ) Temperature profiles are presented and the limiting cases for NPr = 0 are studied.
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