Original title: Evaluation and accuracy of the local velocity data measurements in an agitated vessel
Authors: Kysela, Bohuš ; Konfršt, Jiří ; Chára, Zdeněk ; Kotek, M.
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2013, Kutná Hora (CZ), 2013-11-19 / 2013-11-22
Year: 2014
Language: eng
Abstract: Velocity measurements of the flow field in an agitated vessel are necessary for the improvement and better understanding of the mixing processes. The obtained results are used for the calculations of the impeller pumping capacity, comparison of the power consumption etc. We performed various measurements of the local velocities in an agitated vessel final results of which should be processed for several purposes so it was necessary to make an analysis of the obtained data suitability and their quality. Analysed velocity data were obtained from the LDA (Laser Doppler Anemometry) and PIV (Particle Image Velocimetry) measurements performed on a standard equipment where the flat bottomed vessel with four baffles was agitated by the six-blade Rushton turbine. The results from both used methods were compared. The frequency analyses were examined as well as the dependency of the data rates, time series lengths etc. The demands for the data processed in the form of the ensemble-averaged results were also established.
Keywords: Laser Doppler Anemometry (LDA); measurements; Particle Image Velocimetry (PIV); velocity
Project no.: GAP101/12/2274 (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of the International conference Experimental Fluid Mechanics 2013, ISBN 978-80-260-5375-0

Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0226780

Permalink: http://www.nusl.cz/ntk/nusl-166073


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Research > Institutes ASCR > Institute of Hydrodynamics
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