Heat transfer due to axial turbulent flow along a circular rod

A numerical study of heat transfer due to turbulent flow along a vertical circular pin was performed using the eddy viscosity formulation for forced convection flow developed by Cebeci and Smith (1974) and the numerical procedure for solving the boundary-layer equations of Huang and Chen (1984). The results indicate that overall heat transfer rate of the pin in the turbulent flow is higher than that of the pin in the laminar flow, and the temperature distributions of the pin in the turbulent flow give a larger variation than those of the pin in the laminar flow. This behavior is attributed to enhanced surface that-transfer rate associated with an increase in the random spots of turbulence along the streamwise direction.