The objective of this paper is to evaluate the performance of two inclined slot jets when used in a film cooling application. The coolant gas was injected onto a flat plate in a subsonic wind tunnel. The two geometries used are a 35° inclined slot and a shaped 35° inclined slot. A density ratio of 1.55 was created by using foreign gas (carbon dioxide) injection. In order to determine heat transfer, a thin stainless steel foil was used as a resistance heater to create a constant heat flux. Using a transient method, the heat transfer coefficient was calculated downstream of the two-dimensional slots. In addition, the adiabatic effectiveness was measured. Shaping the slot improves overall performance, with an increased effectiveness and a slight reduction in heat transfer coefficient, particularly far downstream of the slot.

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