Brief review of current work in the UK on three dimensional boundary layers

Work in progress in industry, the universities and the R.A.E is summarized. Areas of study include theoretical work on laminar boundary layers (flow round obstacles, outside streamwise corners, internal flows in turbo-machinery), transition effects on bodies at large angles of incidence associated with cross flow and leading edge contamination, experimental and theoretical work on turbulent boundary layers (swept wings with and without separation, curvature and cross flow, blunt trailing edges, wakes with large cross flow, flow outside streamwise corners, integral and finite difference prediction methods both direct and inverse). It is increasingly appreciated that more work is needed on the fundamental effects of cross flow on the dynamics of turbulence.