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金炅天,尹焞炫 부산대학교 공과대학 1986 硏究報告 Vol.31 No.-
Measurements of mean velocity and turbulence characteristics have been made in a separated, reattached and then redeveloping turbulent shear layer behind a two-dimensional surface-mounted thin block obstacle. Static pressure profiles have also been measured in the whole flow field. In the upstream of the reattachment zone, the extra rate of strain ∂V/∂X and the static pressure both vary significantly across the separated bubble zone due to a stabilizing streamline curvature. Near the reattachment zone, the Reynolds stresses and the turbulent kinetic energy are found to decrease because of the large eddy distortions by the presence of the solid wall boundary. After the reattachment point, transverse change of the integral length scale is more rapid than the length scale growth in the longitudinal direction.