Open access
Oct 2026
Design and Performance Evaluation of 777TD Hybrid Geometry for Additively Manufactured Meso-Scale Cooling Holes
To address overhang sagging in laser powder bed fusion (L-PBF) of meso-scale film-cooling holes, this study proposes a 777TD hybrid geometry combining the nominal 7° diffuser features of a 777 hole with a pointed, self-supporting roof. Ideal smooth-wall computational fluid dynamics (CFD) calculations compared cylindric...
Woo-Sung Choi, Seungyeop Lee, Jih-Yun Sung et al.
· Applied Sciences · 0 citations