Turbulent slurry flow measurement using ultrasonic Doppler method in rectangular pipe

Autor: Bareš V., Krupička J., Picek T., Brabec J., Matoušek V.
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: EPJ Web of Conferences, Vol 67, p 02004 (2014)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/20146702004
Popis: 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.
Databáze: Directory of Open Access Journals