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
More filters
Dissertation
Flying snakes: Aerodynamics of body cross-sectional shape
TL;DR: In this article, the authors investigated the aerodynamic performance of a single, static segment of the flying snake's body over a wide range of Reynolds numbers (3,000 to 15,000) and angles of attack (10 to 60) to simulate the full range of the snake's flight kinematics.
Journal ArticleDOI
Non-destructive technology associating PIV and Sunset laser to create wood deformation maps and predict failure
Tomé M. Souza,Ellem Waleska Nascimento da Fonseca Contado,Roberto A. Braga,Henrique Coelho Barbosa,José T. Lima +4 more
TL;DR: In this paper, an optical approach using particle image velocimetry (PIV) was used to create deformation maps of wood specimens under loading, without contact, and the results showed that the optical approach, using a Sunset laser in conjunction with the PIV method, could monitor the deformation of the samples in a non-destructive way, mainly in the elastic region.
Dissertation
Controlling the Near-wake of a Circular Cylinder with a Single, Large-scale Tripwire
TL;DR: In this article, two types of critical angular locations for the implementation of the large-scale wire on the cylinder surface were shown to exist based on the changes in the flow features in accord with the existing literature.
Proceedings ArticleDOI
The Influence of Velocity Gradients on PIV Measurements of Turbulence Statistics: A Preliminary Study.
Journal ArticleDOI
Velocity measurements of a bench scale buoyant plume applying particle image velocimetry
TL;DR: In this paper, the velocity field in a vertical plane along the plume axis is investigated via particle image velocimetry, and a number of characteristic values for the buoyant plume is derived in different heights, e.g. maximum velocities, plume widths and flow integrals.
References
More filters
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.