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Theory of cross-correlation analysis of PIV images : Image analysis as measuring technique in flows

R. D. Keane, +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.
Book ChapterDOI

Elements of Gas Dynamics

Raymond Brun
Journal ArticleDOI

Digital particle image thermometry/velocimetry: a review

TL;DR: Digital particle image thermometry/velocimetry (DPIT/V) is a relatively new methodology that allows for measurements of simultaneous temperature and velocity within a two-dimensional domain this article.
Journal ArticleDOI

Statistical properties of turbulence: An overview

TL;DR: In this article, the authors present an introductory overview of several challenging problems in the statistical characterization of turbulence and provide examples from fluid turbulence in three and two dimensions, from the turbulent advection of passive scalars, turbulence in the one-dimensional Burgers equation, and fluid turbulent in the presence of polymer additives.
References
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Journal ArticleDOI

Advanced optimization of correlation imaging velocimetry algorithms

TL;DR: Significant developments aimed at improving the performance of digital particle imaging velocimetry (DPIV) type techniques are presented, and alternative methods of sub-pixel positioning are presented along with a new diagnostic tool for evaluating the severity of peak-locking errors in actual laboratory data.
Book

Fundamentals of hot wire anemometry

TL;DR: In this article, the authors used the heated sensor probe to transfer heat from sensors to electronic circuitry and then measured the heat transfer from sensors with a wake-sensing anemometer.
Journal ArticleDOI

The structure of a turbulent shear layer bounding a separation region

TL;DR: In this article, the authors used pulsed-wire anemometry to measure the Reynolds number in the separated shear layer behind a flat plate normal to an airflow, showing that the normal stresses all rise monotonically as reattachment is approached, are always considerably higher than the plane layer values and develop in quite different ways.