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2018 | OriginalPaper | Chapter

8. Stereoscopic PIV

Authors : Markus Raffel, Christian E. Willert, Fulvio Scarano, Christian J. Kähler, Steven T. Wereley, Jürgen Kompenhans

Published in: Particle Image Velocimetry

Publisher: Springer International Publishing

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Abstract

By extending the “classical” single camera PIV implementation with a second camera the planar light sheet can be imaged stereoscopically from two directions allowing the recovery of the velocity vector normal to the light sheet. This chapter on stereo-PIV introduces two primary implementations of stereoscopic imaging along with the concept of Scheimpflug imaging of obliquely viewed light sheet planes. The stereoscopic reconstruction can follow a variety of approaches but collectively rely on some sort of calibration to recover 3-C velocity data from two separate 2-C vector maps. The error introduced through camera misalignment is discussed along with possible mitigation strategies. The application of the stereo-PIV technique in environments with index-of-refraction changes such as in water facilities requires specific imaging arrangements. The chapter closes with a list of recommendations for successful implementation of the stereo-PIV technique.

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previous chapter Post-processing of PIV Data

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Title: Stereoscopic PIV
Authors: Markus Raffel
Christian E. Willert
Fulvio Scarano
Christian J. Kähler
Steven T. Wereley
Jürgen Kompenhans
Publisher: Springer International Publishing
Book: Particle Image Velocimetry
Print ISBN: 978-3-319-68851-0

Electronic ISBN: 978-3-319-68852-7

Copyright Year: 2018
DOI: https://doi.org/10.1007/978-3-319-68852-7_8

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