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
Two-dimensional digital image correlation for in-plane displacement and strain measurement: a review
TL;DR: In this article, a review of the 2D digital image correlation (2D DIC) technique for displacement field measurement and strain field estimation is presented, and detailed analyses of the measurement accuracy considering the influences of both experimental conditions and algorithm details are provided.
Theory of cross-correlation analysis of PIV images : Image analysis as measuring technique in flows
R. D. Keane,R. J. Adrian +1 more
TL;DR: In this article, cross-correlation methods of interrogation of successive single-exposure frames can be used to measure the separation of pairs of particle images between successive frames, which can be optimized in terms of spatial resolution, detection rate, accuracy and reliability.
Journal ArticleDOI
Collective migration of an epithelial monolayer in response to a model wound
M. Poujade,Erwan Grasland-Mongrain,A. Hertzog,J. Jouanneau,Philippe Chavrier,Benoit Ladoux,A. Buguin,Pascal Silberzan +7 more
TL;DR: Dealing with Madin–Darby canine kidney cells on various surfaces, it is found that a sudden release of the available surface is sufficient to trigger collective motility, which is characterized by a duality between collective and individual behaviors.
Journal ArticleDOI
Review of flow rate estimates of the Deepwater Horizon oil spill
Marcia McNutt,R. Camilli,Timothy J. Crone,George D. Guthrie,Paul A. Hsieh,Thomas B. Ryerson,Omer Savas,Frank Shaffer +7 more
TL;DR: By quantifying the amount of oil at different locations (wellhead, ocean surface, and atmosphere), it is concluded that just over 2 million barrels of oil (after accounting for containment) and all of the released methane remained in the deep sea.
Journal ArticleDOI
Next-generation in vivo optical imaging with short-wave infrared quantum dots
Oliver T. Bruns,Thomas S. Bischof,Daniel K. Harris,Daniel Franke,Yanxiang Shi,Lars Riedemann,Alexander Bartelt,Frank B. Jaworski,Jessica A. Carr,Christopher J. Rowlands,Mark W. Wilson,Ou Chen,He Wei,Gyu Weon Hwang,Gyu Weon Hwang,Daniel M. Montana,Igor Coropceanu,Odin B. Achorn,Jonas Kloepper,Joerg Heeren,Peter T. C. So,Dai Fukumura,Klavs F. Jensen,Rakesh K. Jain,Moungi G. Bawendi +24 more
TL;DR: A class of high-quality SWIR-emissive indium-arsenide-based quantum dots (QDs) that are readily modifiable for various functional imaging applications, and that exhibit narrow and size-tunable emission and a dramatically higher emission quantum yield than previously described SWIR probes are introduced.
References
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Journal ArticleDOI
Super-resolution particle imaging velocimetry
TL;DR: In this paper, the authors proposed a super-resolution method for high-image-density particle image velocimetry (PIV), which combines correlation analysis of the group of particles in a spot with sub-interrogation-spot particle tracking.
Journal ArticleDOI
Phase-conjugate holographic system for high-resolution particle-image velocimetry
TL;DR: In this article, a holographic particle-image velocimeter system was developed for the study of three-dimensional (3-D) fluid velocity fields, which produces 3-D particle images with a resolution, a signal-to-noise ratio, an accuracy, and derived velocity fields that are comparable to high-quality two-dimensional photographic particle image velocimetry (PIV).
Journal ArticleDOI
A novel PIV technique for measurements in multiphase flows and its application to two-phase bubbly flows
Ralph Lindken,Wolfgang Merzkirch +1 more
TL;DR: The particle image velocimetry (PIV) technique is a combination of the three most often used PIV techniques in multiphase flows: PIV with fluorescent tracer particles, shadowgraphy, and the digital phase separation with a masking technique.
Journal ArticleDOI
Stereoscopic particle image velocimetry
M. P. Arroyo,Clive A. Greated +1 more
TL;DR: In this article, a set-up has been devised to take two stereoscopic images of the flow simultaneously with only one camera, thus making automatic recording of three-dimensional (3D) velocity fields quite straightforward.
Journal ArticleDOI
Three-Dimensional Particle Tracking Velocimetry Based on Automated Digital Image Processing
TL;DR: In this article, a 3D particle tracking velocimeter for measuring an instantaneous distribution of all the three velocity components in a liquid flow is developed using an automated digital image processing technique, which consists of three TV cameras, a digital image processor, a laser disk recorder and a 16-bit microcomputer.