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
Bulk elastic properties of chicken embryos during somitogenesis
TL;DR: Measurements of the bulk Young's moduli of early chick embryos at Hamburger-Hamilton stage 10 and a two-dimensional finite-element simulation method to model the embryo as four concentric elliptical elastic regions with dimensions matching the embryo's morphology are presented.
Journal ArticleDOI
Particle velocimetry inside Newtonian and non-Newtonian droplets impacting a hydrophobic surface
TL;DR: In this paper, a particle velocimetry technique is described which enables the measurement of the fluid velocity inside impacting drops using high speed photography of 2 μm fluorescent tracer particles suspended in the fluid, the velocity field was measured as a function of time and radial position.
Journal ArticleDOI
A direct-measurement thin-film heat flux sensor array
Jerrod Ewing,Andrew R. Gifford,David O. Hubble,Pavlos P. Vlachos,A. L. Wicks,Thomas E. Diller +5 more
TL;DR: In this article, a thin-film heat flux array (HFA) was designed and fabricated using a series of nickel/copper differential thermocouples deposited onto a thin Kapton® polyimide film.
Particle Image Velocimetry: Fundamentals and Its Applications
TL;DR: The state-of-the-art of the technique today is overviewed and illustrated by reference to recent, seminal publications describing both the development and application of PIV.
Journal ArticleDOI
Time-Resolved PIV investigations of the flow field around cod-end net structures
TL;DR: In this article, a time-resolved PIV method was applied to extract the large scale energetic vortices of the flow from the measured velocity field using proper orthogonal decomposition (POD).
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.