Feasibility study of in-line particle image velocimetry

This article describes recent tests and developments of imaging and evaluation techniques for particle image velocimetry (PIV) that exploit the forward scattering of tracer particles by placing the camera in-line with the illuminating light source, such as a laser or a light emitting diode. These te...

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Bibliographic Details
Published in:Experiments in fluids 2024-03, Vol.65 (3), Article 35
Main Authors: Raffel, Markus, Braukmann, Johannes N., Willert, Christian E., Giuseppini, Luca, Wolf, C. Christian
Format: Article
Language:English
Subjects:
Astronomical instruments
Astronomy
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Feasibility studies
Fluid- and Aerodynamics
Forward scattering
Heat and Mass Transfer
Light emitting diodes
Light sources
Optical instruments
Particle image velocimetry
Research Article
Tracer particles
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Summary:This article describes recent tests and developments of imaging and evaluation techniques for particle image velocimetry (PIV) that exploit the forward scattering of tracer particles by placing the camera in-line with the illuminating light source, such as a laser or a light emitting diode. These techniques have been in use for some time in microscopy and in the design of optical instruments in astronomy. However, they have not yet been used for macroscopic PIV flow measurements. This study highlights the most promising approaches of the various recording configurations and evaluation techniques.
ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-024-03766-4