We investigate the leading-edge separation, also called negligible boundary-layer thickness induced by an impinging shock on a sharp flat plate. The canonical wave/boundary-layer interaction configuration consisting of wedge and plate wall, placed in hypersonic free stream, is used for investigations. first construct theoretical model separated flow field (LESF) which predicts separation bubble...

Abstract

Abstract In turbomachinery, their blade leading edges are critical to performance and therefore fuel efficiency, emission, noise, running maintenance costs. Leading edge damage roughness is either caused by subtractive processes such as foreign object (bird strikes debris ingestion) erosion (hail, rain droplets, sand particles, dust, volcanic ash cavitation) additive filming (from dirt, icing, ...