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Original title:
Flow of heterogeneous slurry in horizontal and inclined pipes
Authors: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Kysela, Bohuš
Document type: Papers
Conference/Event: International Conference on Transport & Sedimentation of Solid Particles /18./, Praha (CZ), 20170911
Year: 2017
Language: eng
Abstract: Narrow particle size distribution heterogeneous slurries were investigated on an experimental pipe loop with the horizontal and inclined pipe sections of inner diameter 100 mm. The investigation was focused on the effect of the pipe inclination, average slurry velocity and overall concentration and on the local concentration distribution, pressure drop, deposition limit and carrier liquid-particle slip velocity. The local concentration distribution was studied with the application of a gamma-ray densitometer. Mixture flow-behaviour and particles motion were investigated in a pipe viewing section. The study revealed that the heterogeneous slurries in the horizontal and inclined pipe sections were significantly stratified, the solid particles moved principally close to the pipe invert, and particle saltation becomes the dominant mode of particle conveying for higher and moderate flow velocities. Carrier liquid-particle slip velocity depends not only on the mixture velocity, but also on particle position in the pipe cross-section. The effect of pipe inclination on the frictional pressure drop in inclined pipe sections depends on mixture velocity, in ascending pipe section decreases with increasing mixture velocity and in descending pipe section the frictional pressure drop gradually decreased with increasing pipe inclination.
Keywords: concentration distribution; mixture flow behaviour; pipe inclination; slip velocity; solid-liquid mixture
Project no.: GA17-14271S (CEP)
Funding provider: GA ČR
Host item entry: 18th International Conference on Transport & Sedimentation of Solid Particles, ISBN 978-83-7717-269-8
Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0279138
Permalink: http://www.nusl.cz/ntk/nusl-371059
The record appears in these collections:
Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers
Authors: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Kysela, Bohuš
Document type: Papers
Conference/Event: International Conference on Transport & Sedimentation of Solid Particles /18./, Praha (CZ), 20170911
Year: 2017
Language: eng
Abstract: Narrow particle size distribution heterogeneous slurries were investigated on an experimental pipe loop with the horizontal and inclined pipe sections of inner diameter 100 mm. The investigation was focused on the effect of the pipe inclination, average slurry velocity and overall concentration and on the local concentration distribution, pressure drop, deposition limit and carrier liquid-particle slip velocity. The local concentration distribution was studied with the application of a gamma-ray densitometer. Mixture flow-behaviour and particles motion were investigated in a pipe viewing section. The study revealed that the heterogeneous slurries in the horizontal and inclined pipe sections were significantly stratified, the solid particles moved principally close to the pipe invert, and particle saltation becomes the dominant mode of particle conveying for higher and moderate flow velocities. Carrier liquid-particle slip velocity depends not only on the mixture velocity, but also on particle position in the pipe cross-section. The effect of pipe inclination on the frictional pressure drop in inclined pipe sections depends on mixture velocity, in ascending pipe section decreases with increasing mixture velocity and in descending pipe section the frictional pressure drop gradually decreased with increasing pipe inclination.
Keywords: concentration distribution; mixture flow behaviour; pipe inclination; slip velocity; solid-liquid mixture
Project no.: GA17-14271S (CEP)
Funding provider: GA ČR
Host item entry: 18th International Conference on Transport & Sedimentation of Solid Particles, ISBN 978-83-7717-269-8
Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0279138
Permalink: http://www.nusl.cz/ntk/nusl-371059
The record appears in these collections:
Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers
Record created 2018-01-11, last modified 2023-12-06