A NOTE ON THE CONTACT TEMPERATURE DURING HIGH-PECLET-NUMBER FLOW OVERA FLAT SUBSTRATE

Knowledge of the temperature at the interface between a hot liquid spr eading over a cold solid substrate is important in determining the nat ure and extent of any freezing of the spreading liquid and/or melting of the substrate. In this paper, a simple model is studied to assess t he influence of convection on the spatial and temporal variation of th e interface temperature; New solutions are determined by both analytic al and approximate numerical techniques. The theoretical and numerical results are compared in the case of slug Row and shown to be in good agreement Shear flow and axisymmetric flow are also considered. (C) 19 97 Elsevier Science Ltd.