ENHANCEMENT OF HEAT-TRANSFER IN AN INVISCID-FLOW THERMAL-BOUNDARY-LAYER DUE TO A RANKINE VORTEX

The effect on heat transfer of a Rankine vortex located near a hat pla te is studied analytically. The velocity field is a superposition of a n inviscid, uniform flow and a secondary perturbation created by the v ortex. Three different vortex configurations are analyzed: transverse, longitudinal and normal with respect to the plate. In general, an inc rease in the local heat transfer coefficient is observed in the downwa sh and a decrease in the upwash regions. The transverse vortex leads t o a larger increase than the longitudinal configuration. The normal vo rtex has a slight decrease in the heat transfer. (C) 1998 Elsevier Sci ence Ltd. All rights reserved.