Akademik Veri Yönetim Sistemi
AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2026, Florida, Amerika Birleşik Devletleri, 12 - 16 Ocak 2026, (Tam Metin Bildiri)
This study experimentally investigates the film-cooling effectiveness and associated flowfield characteristics of two plate geometries subjected to both uniform and swirling inflow conditions. The first configuration is a flat plate with a single row of cylindrical film-cooling holes, whereas the second features an angled-leap surface that forms a continuous slot through which coolant is injected. The experiments are performed in a heated-air wind tunnel, where surface temperature distributions are quantified using infrared thermography and the coolant–mainstream interaction is characterized using two-dimensional, two-component particle image velocimetry. Swirling inflows are generated using an axial swirler adopted from the literature. The results show that swirl significantly alters coolant-jet behavior by inducing lateral deflection and early lift-off, particularly at low blowing ratios. In contrast, the angled-leap slot configuration provides more spatially continuous and persistent cooling coverage under both uniform and swirling inflows, indicating improved resilience to swirl-dominated crossflow conditions. These findings highlight the potential benefits of slot-type angled-leap designs for film-cooling applications in environments where strong swirl effects are present.