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
Measurement of atmospheric boundary layer based on super-large-scale particle image velocimetry using natural snowfall
Mostafa Toloui,Mostafa Toloui,Sean Riley,Sean Riley,Jiarong Hong,Jiarong Hong,Kevin Howard,Kevin Howard,Leonardo P. Chamorro,Leonardo P. Chamorro,Michele Guala,Michele Guala,J. Tucker +12 more
TL;DR: In this article, a super-large-scale particle image velocimetry (SLPIV) was used to characterize spatially the turbulent atmospheric boundary layer using natural snowfall as flow tracers.
Journal ArticleDOI
Tracking granules on the Sun's surface and reconstructing velocity fields - I. The CST algorithm
TL;DR: In this article, a method called CST for coherent structure tracking, which determines the horizontal motion of granules in the field of view, is proposed, which is shown to be less effective for large granules because of increased sensitivity to granule fragmentation.
Journal ArticleDOI
Structures of supercavitating multiphase flows
TL;DR: In this paper, a high-speed video camera is used to visualize the flow structures under different cavitation numbers, and a particle image velocimetry (PIV) technique was used to measure the instantaneous velocity and vorticity fields.
Journal ArticleDOI
Spatiotemporal analysis of turbulent jets enabled by 100-kHz, 100-ms burst-mode particle image velocimetry
Joseph D. Miller,Naibo Jiang,Mikhail N. Slipchenko,Jason G. Mance,Terrence R. Meyer,Sukesh Roy,James R. Gord +6 more
TL;DR: In this article, a double-pulsed, burst-mode laser with a burst duration up to 100ms was used for particle image velocimetry (PIV).
Journal ArticleDOI
Resolving two-dimensional flow structure in rivers using large-scale particle image velocimetry: An example from a stream confluence
Quinn W. Lewis,Bruce L. Rhoads +1 more
TL;DR: In this paper, a high-resolution action camera mounted above a stream confluence and water seeded with recycled landscape mulch is used to measure surface velocities at high spatial and temporal resolution.
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.