ANALYSIS OF LIQUID METAL HEAT TRANSFER FOR TURBULENT TUBE FLOW AND MODERATE TO LOW PECLET NUMBERS.

In the present study, the surface renewal approach is extended to turbulent liquid metal heat transfer for Peclet numbers below 5000 by the inclusion of the important effects of axial convection in the modeling equation for instantaneous transport for both uniform heat flux and uniform wall temperature boundary conditions. The partial differential equations are transformed into ordinary differential equations by Laplace transformation and are solved by a fourth order Runge-Kutta method to obtain the mean temperature profiles and Nusselt number. Predictions for Nu are found to be in good agreement with recent experimental data for Pe ranging between 100 and 10**4.