External Manipulators (LEBUs).- Balance of turbulent kinetic energy downstream a single flat, plate manipulator : comparisons between detailed experiments and modelling..- Manipulation and modelling of turbulent pipe flow : some parametric studies of single and tandem ring devices..- Large eddy simulation of manipulated boundary layer and channel flows..- The importance of LEBU device shape for turbulent drag reduction..- Internal Manipulators (Riblets).- Boundary layer flow visualisation patterns on a riblet surface..- Simultaneous flow visualisation and LDA studies over longitudinal micro-grooved surfaces..- Effects of longitudinal pressure gradients on turbulent drag reduction with riblets..- Synthesis of experimental riblet studies in transonic conditions..- Effect of riblets on either fully developed boundary layers or internal flows in laminar regime..- Internal and External Manipulators.- Turbulent boundary layer over a ribleted surface with tandem manipulators using surface drag balances..- List of referees.
