Journal ArticleDOI
Twenty years of particle image velocimetry
TLDR
The development of the method of particle image velocimetry (PIV) is traced by describing some of the milestones that have enabled new and/or better measurements to be made.Abstract:
The development of the method of particle image velocimetry (PIV) is traced by describing some of the milestones that have enabled new and/or better measurements to be made. The current status of PIV is summarized, and some goals for future advances are addressed.read more
Citations
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Journal ArticleDOI
Development of a Robust Stereo-PIV System for 3-D Soil Deformation Measurement
TL;DR: A robust stereo-particle image velocimetry (Stereo-PIV) system developed for three-dimensional (3-D) soil deformation measurement in geotechnical engineering research and is applied in a model test to measure 3-D sand deformation around a laterally loaded pile.
Journal ArticleDOI
Challenges and improvements in applying a particle image velocimetry (PIV) approach to granular flows
Dual-Volume and Four-Pulse Tomo PIV using polarized laser light
TL;DR: In this paper, a dual-volume and four-pulse PIV system operating with two pairs of perpendicularly polarized laser light pulses and respective polarizing filters for separation of the scattered particle light is presented.
Journal ArticleDOI
Experimental investigation of the flow around a simplified ground vehicle under effects of the steady crosswind
TL;DR: In spite of the numerous studies investigating aerodynamics of the ground vehicles in the... as discussed by the authors, crosswinds which stem from on-road flow conditions can deteriorate a ground vehicle's driving performance.
Density effects on turbulent boundary layer structure: From the atmosphere to hypersonic flow
TL;DR: In this article, the effects of density gradients on turbulent boundary layer statistics and structure using Particle Image Velocimetry (PIV) measurements were obtained in conjunction with the mean temperature profile in low Reynolds number facility over smooth and rough surfaces.
References
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Book
Particle Image Velocimetry: A Practical Guide
TL;DR: In this paper, the authors present a practical guide for the planning, performance and understanding of experiments employing the PIV technique, which is primarily intended for engineers, scientists and students, who already have some basic knowledge of fluid mechanics and nonintrusive optical measurement techniques.
Journal ArticleDOI
Digital Particle Image Velocimetry
Christian Willert,Morteza Gharib +1 more
TL;DR: In this article, the directional ambiguity associated with PIV and LSV is resolved by implementing local spatial cross-correlations between two sequential single-exposed particle images, and the recovered velocity data are used to compute the spatial and temporal vorticity distribution and the circulation of the vortex ring.
Book ChapterDOI
Particle Image Velocimetry
TL;DR: In this paper, the authors use hot-wire (HW) or laser velocimetry (LV) to estimate the velocity, vorticity, and pressure fields of wake flows.
Journal ArticleDOI
Determination of displacements using an improved digital correlation method
TL;DR: An improved digital correlation method is presented for obtaining the full-field in-plane deformations of an object by numerically correlating a selected subset from the digitized intensity pattern of the undeformed object.
Journal ArticleDOI
Fundamentals of digital particle image velocimetry
TL;DR: In this paper, the measurement principle of digital particle image velocimetry (PIV) is described in terms of linear system theory and conditions for PIV correlation analysis as a valid interrogation method are determined.