https://doi.org/10.1051/epjconf/20146702004
Turbulent slurry flow measurement using ultrasonic Doppler method in rectangular pipe
Department of Hydraulics and Hydrology, Czech Technical University in Prague, 166 29 Prague 6
a Corresponding author: bares@fsv.cvut.cz
Published online: 25 March 2014
Distribution of velocity and Reynolds stress was measured using ultrasonic velocimetry in flows of water and Newtonian water-ballotini slurries in a pressurized Plexiglas pipe. Profiles of the measured parameters were sensed in the vertical plane at the centreline of a rectangular cross section of the pipe. Reference measurements in clear water produced expected symmetrical velocity profiles the shape of which was affected by secondary currents developed in the rectangular pipe. Slurry-flow experiments provided information on an effect of the concentration of solid grains on the internal structure of the flow. Strong attenuation of velocity fluctuations caused by a presence of grains was identified. The attenuation increased with the increasing local concentration of the grains.
© Owned by the authors, published by EDP Sciences, 2014
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