Photogrammetric techniques have been used for measuring the important physical
quantities in both ground and flight testing including aeroelastic deformation, attitude …

A brief review of the use of surface oil flow visualization (SOFV) in wind tunnel testing is
provided. The first part of the review discusses the concept of flow separation in three …

View Video Presentation: https://doi. org/10.2514/6.2022-1209. vid This study was motivated
by the need for a benchmark data set for the characterization of smooth body separation …

The feasibility of skin-friction field measurements using the global luminescent oil-film skin-
friction field estimation method was evaluated for a challenging case of a supercritical airfoil …

An accurate and straightforward skin-friction measurement procedure over a three-
dimensional (3D) bump geometry is proposed. The procedure employs oil-film …

Recognizing the need for global surface measurement techniques to characterize the time-
varying, three-dimensional loading encountered on rotating wind turbine blades, fast …

An experimental characterization of transonic, turbulent, separated flow generated by an
axisymmetric model is presented, with intent for use as a computational validation case. The …

The luminescent oil film flow tagging skin friction meter is presented and used to collect time-
averaged spatially distributed skin friction data on the surface of NASA's FAITH model. The …

A theoretical analysis is presented to elucidate the relationship between the skin friction
topology of the secondary separation bubble and surface pressure structure in the fin …

We report an optical wall shear stress sensor based on the whispering gallery mode (WGM)
shifts of dielectric micro-resonators. The optical resonators are spheres with a typical …