Number of the records: 1

Flow behaviour and local concentration of coarse particles-water mixture in inclined pipes

SYSNO ASEP	0463877
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Flow behaviour and local concentration of coarse particles-water mixture in inclined pipes
Author(s)	Vlasák, Pavel (UH-J)_{SAI, ORCID, RID} Chára, Zdeněk (UH-J)_{SAI, ORCID, RID} Konfršt, Jiří (UH-J)_{SAI, ORCID, RID}
Source Title	Journal of Hydrology and Hydromechanics. - : Ústav pro hydromechaniku AV ČR, v. v. i.. - : Ústav hydrológie SAV - ISSN 0042-790X Roč. 65, č. 2 (2017), s. 183-191
Number of pages	9 s.
Publication form	Print - P
Language	eng - English
Country	SK - Slovakia
Keywords	coarse particle mixture ; concentration distribution ; effect of pipe inclination ; gamma-ray radiometry ; Hydraulic conveying ; mixture flow behaviour
Subject RIV	BK - Fluid Dynamics
OECD category	Fluids and plasma physics (including surface physics)
R&D Projects	GAP105/10/1574 GA ČR - Czech Science Foundation (CSF)
Institutional support	UH-J - RVO:67985874
UT WOS	000398163300009
EID SCOPUS	85016287805
DOI	10.1515/johh-2017-0001
Annotation	Narrow particle size distribution basalt pebbles of mean particle size 11.5 mm conveyed by water in the pipe sections of different inclination were investigated on an experimental pipe loop, consisting of smooth stainless steel pipes of inner diameter D = 100 mm. Mixture flow-behaviour and particles motion along the pipe invert were studied in a pipe viewing section, the concentration distribution in pipe cross-section was studied with the application of a gamma-ray densitometer. The study refers to the effect of mixture velocity, overall concentration, and angle of pipe inclination on chord-averaged concentration profiles and local concentration maps, and flow behaviour of the coarse particle-water mixtures. The study revealed that the coarse particle-water mixtures in the inclined pipe sections were significantly stratified, the solid particles moved principally close to the pipe invert, and for higher and moderate flow velocities particle saltation becomes the dominant mode of particle conveying.
Workplace	Institute of Hydrodynamics
Contact	Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
Year of Publishing	2018

Number of the records: 1