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Experiments in Fluids

Erschienen in:

01.08.2004 | Original

Detecting coherent patterns in a flume by using PIV and IR imaging techniques

verfasst von: Roi Gurka, Alex Liberzon, Gad Hetsroni

Erschienen in: Experiments in Fluids | Ausgabe 2/2004

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Abstract

We investigated the flow field in a turbulent boundary layer in a flume, by using Particle Image Velocimetry (PIV) and Hot-Foil Infrared Imaging (HFIRI) techniques. Coherent patterns in the flow were identified and characterized by using instantaneous velocity and temperature fields. The velocity fields in the streamwise–spanwise plane were measured in parallel to the temperature distribution of the flume bottom. The identified patterns are represented by means of their spatial characteristics – a non-dimensional spatial separation between streamwise patterns, λ ⁺.

Vorheriger Artikel Turbulent drag reduction in dam-break flows

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Titel: Detecting coherent patterns in a flume by using PIV and IR imaging techniques
verfasst von: Roi Gurka
Alex Liberzon
Gad Hetsroni
Publikationsdatum: 01.08.2004
Verlag: Springer-Verlag
Erschienen in: Experiments in Fluids / Ausgabe 2/2004
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-004-0805-3

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