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Experiments in Fluids
Erschienen in: Experiments in Fluids 9/2016

01.09.2016 | Research Article

Combined density gradient and velocity field measurements in transient flows by means of Differential Interferometry and Long-range \(\varvec{\upmu }\)PIV

verfasst von: S. Kordel, T. Nowak, R. Skoda, J. Hussong

Erschienen in: Experiments in Fluids | Ausgabe 9/2016

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Abstract

In the present study, Long-range Microparticle Image Velocimetry (\(\upmu\)PIV) and Differential Interferometry (DI) are combined in a novel manner to enable both velocity and depth-integrated density gradient field measurements using the same laser pulse for both recordings. In the present work, temperature-driven boundary layer flows could be successfully determined to an accuracy of \(\Updelta T=0.17\,\hbox {K}\) with a spatial resolution of \(405\,\upmu \hbox {m}\) for interference and \(101\,\upmu \hbox {m}\) for \(\upmu\)PIV measurements. The DI measurements are refraction compensated, and both temperature and velocity fields are compared with results from numerical simulations.
Nächster Artikel Dense velocity reconstruction from tomographic PTV with material derivatives

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Metadaten
Titel
Combined density gradient and velocity field measurements in transient flows by means of Differential Interferometry and Long-range PIV
verfasst von
S. Kordel
T. Nowak
R. Skoda
J. Hussong
Publikationsdatum
01.09.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Experiments in Fluids / Ausgabe 9/2016
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-016-2224-7

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