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
Blood Flow Velocimetry in a Microchannel During Coagulation Using Particle Image Velocimetry and Wavelet-Based Optical Flow Velocimetry.
TL;DR: In this paper, the velocity of whole blood flow in a microchannel during coagulation is measured using particle image velocimetry (PIV) and wavelet-based optical flow velo-imaging (wOFV).
Instantaneous planar pressure determination from particle image velocimetry
TL;DR: In this paper, the authors used particle image velocimetry (PIV) velocity data to determine forces and pressure in order to determine sectional loading of flapping or rotating wings.
Posted Content
Robust Principal Component Analysis for Modal Decomposition of Corrupt Fluid Flows.
TL;DR: In this paper, robust principal component analysis (RPCA) is used to improve the quality of flow field data by leveraging global coherent structures to identify and replace spurious data points.
The subsonic near wake of bluff bodies
Claus Christian Wolf,Eike Stumpf +1 more
TL;DR: In this paper, an experimental wind tunnel investigation of subscale models in subsonic freestream conditions is presented, focusing on the spatio-temporal behavior of the wake.
Journal ArticleDOI
Analysis and correction of errors in nanoscale particle tracking using the Single-pixel interior filling function (SPIFF) algorithm
TL;DR: In this paper, a single-pixel interior filling function (SPIFF) algorithm was proposed to correct the pixel locking effect in particle tracking, where the particle sub-pixel positions are biased towards the center of the pixel.
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.