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          Institute: MPI für Dynamik komplexer technischer Systeme     Collection: International Max Planck Research School (IMPRS)     Display Documents

ID: 571460.0, MPI für Dynamik komplexer technischer Systeme / International Max Planck Research School (IMPRS)
Improved 3-D Particle Tracking Velocimetry with colored particles
Authors:Bendicks, C.; Tarlet, D.; Roloff, C.; Bordás, R.; Wunderlich, B.; Michaelis, B.; Thévenin, D.
Date of Publication (YYYY-MM-DD):2011
Title of Journal:Journal of Signal and Information Processing
Issue / Number:2
Start Page:59
End Page:71
Review Status:Peer-review
Audience:Experts Only
Intended Educational Use:No
Abstract / Description:This work describes an original approach for 3D Particle Tracking Velocimetry (3D PTV), applicable also for gaseous flows and based on tracer particles of different colours. On the images acquired by several cameras, tracer particles are handled by colour recognition and 3D localisation. Then, the PTV tracking algorithm rebuilds the trajectories of the tracer particles using a criterion of Minimum Acceleration. Theoretical and numerical calculations are first presented to demonstrate that the employed coloured tracer particles follow in a suitable manner the considered gas flows. The test cases analysed comprise low Reynolds number flows involving a variety of interesting features, in particular boundary layer separation, continuous acceleration and recirculations. The experimental setup and the 3D PTV procedure are then described. All results are analysed in a quantitative manner and demonstrate the performance of the developed measurement strategy in gas flows.
Free Keywords:3D particle tracking – Gas flows – Coloured tracer particles – Velocimetry – Wind tunnel
External Publication Status:published
Document Type:Article
Communicated by:Barbara Witter
Affiliations:MPI für Dynamik komplexer technischer Systeme/International Max Planck Research School (IMPRS)
External Affiliations:Otto von Guericke University, ISUT
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