Heat Transfer to Separated Flow Regions From a Rectangular Prism in a Cross Stream

Abstract
A series of experiments have been performed to determine the constant surface temperature heat transfer and the corresponding surface pressure variation on a two-dimensional rectangular prism in crossflow whose aspect ratio (chord to height) was 4/1. Results are presented for a surface exposed to both separated and reattached flow and for a wake exposed surface, each for several different angles of attack. Universal Stanton number and pressure coefficient curves result when data are plotted against downstream distance scaled by the length of the near-constant pressure portion of the separated bubble for the reattaching case. This is varified by comparison to other studies involving different geometries. The Nusselt number at reattachment seems to be dependent only on reattachment Reynolds number for these cases. The variation of the local Stanton number across the wake facing surface was found to be a function of angle of attack.