Local velocity profiles measured by PIV in a vessel agitated by Rushton turbine

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F14%3A00223683" target="_blank" >RIV/68407700:21220/14:00223683 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.14311/AP.2014.54.0430" target="_blank" >http://dx.doi.org/10.14311/AP.2014.54.0430</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14311/AP.2014.54.0430" target="_blank" >10.14311/AP.2014.54.0430</a>

Result language
angličtina
Original language name
Local velocity profiles measured by PIV in a vessel agitated by Rushton turbine
Original language description
The hydrodynamics and flow field were measured in an agitated vessel using 2-D Time Resolved Particle Image Velocimetry (2-D TR PIV). The experiments were carried out in a fully baffled cylindrical flat bottom vessel 300 mm in inner diameter. The tank was agitated by a Rushton turbine 100 mm in diameter. The velocity fields were measured for three impeller rotation speeds 300 rpm, 450 rpm and 600 rpm and the corresponding Reynolds numbers in the range 50 000 < Re < 100 000, which means that the fully-developed turbulent flow was reached. In accordance with the theory of mixing, the dimensionless mean and fluctuation velocities in the measured directions were found to be constant and independent of the impeller rotational speed. The velocity profiles were averaged, and were expressed by Chebyshev polynomials of the 1st order. Although the experimentally investigated area was relatively far from the impeller, and it was located in upward flow to the impeller, no state of local isotropy w
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Project
<a href="/en/project/GAP101%2F12%2F2274" target="_blank" >GAP101/12/2274: Local rate of turbulent energy dissipation in agitated reactors & bioreactors</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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