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Commissioning a stereoscopic particle image velocimeter system for application in a towing tank


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Molyneux, D, Xu, Jui and Bose, N 2007 , 'Commissioning a stereoscopic particle image velocimeter system for application in a towing tank', paper presented at the 28th American Towing Tank Conference, August 9-10 2007, University of Michigan, USA.

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In January 2004, Memorial University purchased a stereoscopic Particle Image Velocimetry
(PIV) system for making flow measurements. Although the system was potentially very
versatile, its primary application was envisioned to be in a towing tank. The system was
supplied as a complete package of hardware and software for calibration, data collection and
analysis. The intention of the PIV system designers was to collect as many data frames as
possible for a fixed measurement plane location, relative to the model. This required the PIV
system to be fixed on the towing carriage, moving with the model being studied. It was found
during some preliminary experiments that an active seeding delivery system was necessary to
ensure sufficiently high seeding particle concentration, especially when measuring flow
velocities around a model hull with a large yaw angle. This paper describes the development of
a seeding technique for a PIV system that can be used in a towing tank. The paper also includes
an estimate of the uncertainty of the measurement system, including the analysis of the flow
behind the device used to deliver seed particles into the flow.

Item Type: Conference or Workshop Item (Paper)
Authors/Creators:Molyneux, D and Xu, Jui and Bose, N
Keywords: PIV; Particle image velocimetry; seeding particles
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