Numerical study of heat transfer in turbulent shear flow

Results are presented for the heat flux and the intensity of temperature fluctuations obtained by solving a modification of the forced convection equation in which a mixing length profile is imposed on the spanwise and longitudinal average of the temperature field for points lying outside the wall region. The results for steady turbulent flow are shown to be in good agreement with the available experimental data. Results are also presented for unsteady turbulent flow which indicate that the heat flux exhibits a strong phase dependence.