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3D scanning particle tracking velocimetry
In this article, we present an experimental setup and data processing schemes for 3D scanning particle tracking velocimetry (SPTV), which expands on the classical 3D particle tracking velocimetryExpand
A Lagrangian investigation of the small-scale features of turbulent entrainment through particle tracking and direct numerical simulation
We report an analysis of small-scale enstrophy ω2 and rate of strain s2 dynamics in the proximity of the turbulent/non-turbulent interface in a flow without strong mean shear. The techniques used areExpand
Generalized detection of a turbulent front generated by an oscillating grid
This report presents experimental results on the propagation of a turbulent front induced by an oscillating grid starting from rest. The purpose of this preliminary investigation is to implement andExpand
Long-Duration Time-Resolved PIV to Study Unsteady Aerodynamics
The buildup of flutter is shown to exhibit complex dynamics that are heavily influenced by the flow-induced motion of the body, and features of the wake turbulence as a function of time are presented and shown to substantially vary. Expand
POD of vorticity fields: A method for spatial characterization of coherent structures
Abstract We present a method to identify large scale coherent structures, in turbulent flows, and characterize them. The method is based on the linear combination of the proper orthogonalExpand
Small-scale aspects of flows in proximity of the turbulent/nonturbulent interface
The work reported below is the first of its kind to study the properties of turbulent flow without strong mean shear in a Newtonian fluid in proximity of the turbulent/nonturbulent interface, withExpand
XPIV–Multi-plane stereoscopic particle image velocimetry
We introduce the three-dimensional measurement technique (XPIV) based on a Particle Image Velocimetry (PIV) system. The technique provides three-dimensional and statistically significant velocityExpand
Measurement of avocado softening at various temperatures using ultrasound
The low-temperature storage of avocado affects its subsequent softening process and shelf life. One of the main indices of ripeness in avocado fruit is firmness, which changes during the ripening andExpand
On the evolution of material lines and vorticity in homogeneous turbulence
The evolution of material lines, $l$ , and vorticity, $\omega$ , is investigated experimentally through three-dimensional particle-tracking velocimetry (3D-PTV) in quasi-homogeneous isotropicExpand
An experimental investigation on Lagrangian correlations of small-scale turbulence at low Reynolds number
Lagrangian auto- and cross-correlation functions of the rate of strain s2, enstrophy ω2, their respective production terms −sijsjkski and ωiωjsij, and material derivatives, Ds2/Dt and Dω2/Dt areExpand