Počet záznamů: 1
Concentration distribution and deposition limit of medium-coarse sand-water slurry in inclined pipe
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SYSNO ASEP 0517222 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Concentration distribution and deposition limit of medium-coarse sand-water slurry in inclined pipe Tvůrce(i) Vlasák, Pavel (UH-J) SAI, ORCID, RID
Matoušek, Václav (UH-J) ORCID, SAI, RID
Chára, Zdeněk (UH-J) SAI, ORCID, RID
Krupička, Jan (UH-J) SAI, RID
Konfršt, Jiří (UH-J) SAI, ORCID, RID
Kesely, Mikoláš (UH-J) ORCIDZdroj.dok. Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X
Roč. 68, č. 1 (2020), s. 83-91Poč.str. 9 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. SK - Slovensko Klíč. slova sand-slurry ; pipe inclination ; concentration distribution ; deposition limit ; gamma-ray radiometry Vědní obor RIV BK - Mechanika tekutin Obor OECD Fluids and plasma physics (including surface physics) CEP GA17-14271S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UH-J - RVO:67985874 UT WOS 000514680600009 EID SCOPUS 85082082868 DOI 10.2478/johh-2019-0023 Anotace Sand-water slurry was investigated on an experimental pipe loop of inner diameter D = 100 mm with the hori-zontal, inclined, and vertical smooth pipe sections. A narrow particle size distribution silica sand of mean diameter0.87 mm was used. The experimental investigation focused on the effects of pipe inclination, overall slurry concentration, and mean velocity on concentration distribution and deposition limit velocity. The measured concentration profiles showed different degrees of stratification for the positive and negative pipe inclinations. The degree of stratification depended on the pipe inclination and on overall slurry concentrationand velocity. The ascending flow was less stratified than the cor-responding descending flow, the difference increasing from horizontal flow up to an inclination angle of about +30°. The deposition limit velocity was sensitive to the pipe inclination,reaching higher values in the ascending than in the hori-zontal pipe. The maximum deposition limit value was reached for an inclination angle of about +25°, and the limit remained practically constant in value, about 1.25 times higher than that in the horizontal pipe. Conversely, in the de-scending pipe, the deposition limit decreased significantly with the negative slopes and tended to be zero for an inclina-tion angle of about −30°, where no stationary bed was observed. Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0307261
Počet záznamů: 1