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

Roi Gurka; Alex Liberzon; Gad Hetsroni

doi:10.1007/s00348-004-0805-3

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

Roi Gurka, Alex Liberzon, Gad Hetsroni

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

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⁺.

Original language	English
Pages (from-to)	230-236
Number of pages	7
Journal	Experiments in Fluids
Volume	37
Issue number	2
DOIs	https://doi.org/10.1007/s00348-004-0805-3
State	Published - 1 Jan 2004
Externally published	Yes

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
General Physics and Astronomy
Fluid Flow and Transfer Processes

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AB - 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+.

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

Abstract

ASJC Scopus subject areas

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