Considerable discussion over the past few years has been devoted to the question of
whether the logarithmic region in wall turbulence is indeed universal. Here, we analyse …

This paper examines the recovery of the wall-shear stress of a turbulent boundary layer that
has undergone a sudden transition from a rough to a smooth surface. Early work of Antonia …

The floating-element (FE) principle, introduced nearly a century ago, remains one of the
most versatile direct wall shear stress measurement methods. Yet, its intrinsic sources of …

We report two-dimensional particle image velocimetry experiments in high Reynolds
number turbulent boundary layers imposed with a moderately strong streamwise pressure …

Oil-film interferometry is rapidly becoming the preferred method for direct measurement of
wall shear stress in studies of wall-bounded turbulent flows. Although being widely accepted …

The influence of realistic roughness on turbulent boundary-layers Page 1 The influence of
realistic roughness on turbulent boundary-layers by Aditya Ramani ORCID: 0000-0002-0782-6441 …

In this study, oil film interferometry (OFI) was applied to the flow around the suction surface of
a twodimensional airfoil under high lift conditions to measure the wall shear stress …

An experimental investigation of the streamwise evolution of an adverse-pressure gradient
(APG) turbulent boundary layer (TBL) on a smooth wall, develo** from a …

Wind loads on structures and the wind environment around buildings are based on tests in
boundary layer wind tunnels with corresponding scale parameters. The lower part of the …

We aimed to measure the two-dimensional wall shear stress using oil film interferometry
(OFI) for the flow around the suction surface of a two-dimensional airfoil. In a previous study …