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

Roi Gurka, Alex Liberzon, Gad Hetsroni*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


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+.

Original languageEnglish
Pages (from-to)230-236
Number of pages7
JournalExperiments in Fluids
Issue number2
StatePublished - Aug 2004
Externally publishedYes


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