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
Use of particle tracking velocimetry in timber material and connection testing
TL;DR: Particle tracking velocimetry (PTV) was applied for the first time in three different experimental studies in the field of structural timber engineering: (1) dowel embedment testing in cross laminated timber (CLT), (2) large-scale dowelled CLT connection testing, (3) material testing of small clear wood and laminated veneer lumber (LVL) as discussed by the authors.
Journal ArticleDOI
On the quasi-instantaneous aerodynamic load and pressure field measurements on turbines by non-intrusive PIV
Arturo Villegas,F. Javier Diez +1 more
TL;DR: In this paper, an experimental technique is presented to non-intrusively measure the quasi-instantaneous aerodynamic loads and surrounding pressure field for a turbine by using particle image velocimetry (PIV).
Journal ArticleDOI
Limiting Uncertainty Relations in Laser-Based Measurements of Position and Velocity Due to Quantum Shot Noise
TL;DR: The Cramér-Rao bound is described as a universal information theoretic tool to calculate the minimal achievable measurement uncertainty for different measurement techniques, and a review of the respective lower bounds for laser-based measurements of position, displacement, strain and velocity at particles and surfaces is presented.
Proceedings ArticleDOI
Time-Resolved PIV Diagnostics to Measure Flow Field Exiting Methane-Fueled Rotating Detonation Combustor
Daniel Depperschmidt,Jonathan Tobias,Robert Miller,Mruthunjaya Uddi,Ajay K. Agrawal,Jeffrey Stout +5 more
Physics of microparticle acoustophoresis: Bridging theory and experiment
TL;DR: In this article, the authors present a theoretical framework for microparticle acoustophoresis, a technique for manipulation of particles in micro-systems by means of acoustic radiation and streaming forces induced by ultrasound standing waves.
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.