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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Experimental investigation of adverse pressure gradient turbulent boundary layers by means of large-scale PIV
Nathan J. Reuther,Daniel Schanz,Sven Scharnowski,Rainer Hain,Andreas Schröder,Christian J. Kähler +5 more
TL;DR: In this article, the authors present an experimental study using multiple large-scale PIV systems combined with long range micro PIV, with the purpose of shedding more light into the field of turbulent boundary layers.
Posted Content
Analysis and correction of errors in nanoscale particle tracking using the Single-pixel interior filling function (SPIFF) algorithm
TL;DR: It is shown that errors in interparticle separation, angle and mean square displacement are significantly reduced by applying the corrective Single-Pixel Interior Filling Function (SPIFF) algorithm.
Dissertation
Role of viscoelasticity and non-linear rheology in flows of complex fluids at high deformation rates
TL;DR: In this paper, the authors proposed a method to solve the problem of the problem by using a two-dimensional model of the human brain, and demonstrated that it can be solved.
Journal ArticleDOI
Wireless detector for translational and rotational motion of spherical-particle flow
TL;DR: In this paper, a wireless spherical detector with a built-in wireless module and a three-axis gyroscope and threeaxis accelerometer was developed to measure the translational and rotational motion of spherical particles in a 3D granular flow.
Journal ArticleDOI
Wall Shear Stress Measurements in an Arterial Flow Bioreactor
TL;DR: Analysis of cell response to hemodynamic parameters using such bioreactors should be accompanied by corresponding flow measurements for accurate quantification of fluid stresses, and the Poiseuille flow assumption was found to be invalid.
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.