In: Journal of Hydrology and Hydromechanics, vol. 67, no. 2
Pavel Vlasak - Zdenek Chara - Václav Matoušek - Jiri Konfrst - Mikoláš Kesely
Detaily:
Rok, strany: 2019, 113 - 120
Kľúčové slová:
Settling slurry; Effect of pipe inclination; Concentration distribution; Pressure drops; Deposition limit;
Gamma-ray radiometry.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
For the safe and economical design and operation of freight pipelines it is necessary to know slurry flow behaviour
in inclined pipe sections, which often form significant part of pipelines transporting solids. Fine-grained settling
slurry was investigated on an experimental pipe loop of inner diameter D = 100 mm with the horizontal and inclined pipe
sections for pipe slopes ranging from –45° to +45°. The slurry consisted of water and glass beads with a narrow particle
size distribution and mean diameter d50 = 180 μm. The effect of pipe inclination, mean transport volumetric concentration,
and slurry velocity on flow behaviour, pressure drops, deposition limit velocity, and concentration distribution was
studied. The study revealed a stratified flow pattern of the studied slurry in inclined pipe sections. Frictional pressure
drops in the ascending pipe were higher than that in the descending pipe, the difference decreased with increasing velocity
and inclination. For inclination less than about 25° the effect of pipe inclinations on deposition limit velocity and local
concentration distribution was not significant. For descending pipe section with inclinations over –25° no bed deposit
was observed.
Ako citovať:
ISO 690:
Vlasak, P., Chara, Z., Matoušek, V., Konfrst, J., Kesely, M. 2019. Experimental investigation of fine-grained settling slurry flow behaviour
in inclined pipe sections. In Journal of Hydrology and Hydromechanics, vol. 67, no.2, pp. 113-120. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2018-0039
APA:
Vlasak, P., Chara, Z., Matoušek, V., Konfrst, J., Kesely, M. (2019). Experimental investigation of fine-grained settling slurry flow behaviour
in inclined pipe sections. Journal of Hydrology and Hydromechanics, 67(2), 113-120. 0042-790X (until 2019) . DOI: https://doi.org/10.2478/johh-2018-0039
O vydaní: