CONJUGATED PERIODIC TURBULENT FORCED-CONVECTION IN A PARALLEL-PLATE CHANNEL

The transient conjugated turbulent heat transfer with axial conduction in the wall and convection boundary conditions is solved with the gen eralized integral transform technique for the flow of a Newtonian flui d in a parallel-plate duct subjected to periodically varying inlet tem perature. A lumped model that neglects transverse temperature gradient s in the solid, but takes into account the axial heat conduction along the wall, is adopted. Accurate numerical results are presented for th e fluid bulk temperature, wall temperature, and wall heat flux. The ef fects of the conjugation parameter, fluid-to-solid heat capacitance ra tio, and Biot number on the behavior of the periodic responses are inv estigated.