Effects of Crossflow on Impingement Heat Transfer

Abstract

An experimental study of the effects of a cross-flowing air stream on the heat transfer characteristics of single lines of circular air jets impinging on plane surfaces is presented. The study models a practically important class of cooling configurations where jets issuing from one wall of a channel and impinging on the opposite wall are deflected by the exhausting flow of upstream jets. The upstream and downstream changes in heat transfer are evaluated separately and compared with heat transfer rates obtained in the absence of crossflow.