Turbulent forced convection with sinusoidal variation of inlet temperature between two parallel-plates

The thermal entry region heat transfer due to turbulent forced convection, subjected to a sinusoidally varying inlet temperature is solved by employing a hybrid numerical-analytical solution technique under linear variation df wall temperature and constant wall temperature as boundary condition and is verified with the experimental results. The analytical solution of the problem is obtained through extending the generalized integral transform technique. An experimental set-up was built and used in order to validate the employed mathematical modeling. Analytical solutions are compared with the experimental findings. Satisfactory agreement is obtained between theoretically and experimentally determined heat transfer characteristics for different axial positions along the channel. Heat transfer characteristics of flow have been determined for linear wall temperature and constant wall temperature boundary conditions. Results obtained from the analytical-numerical solution technique and experimental studies have been presented in graphical and tabular forms. Copyright (C) 1996 Elsevier Science Ltd