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Original title:
Flow of coarse-grained particles-water mixture in pipes
Authors: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Krupička, Jan
Document type: Papers
Conference/Event: 15th International Freight Pipeline society symposium, Praha (CZ), 2014-06-24 / 2014-06-27
Year: 2014
Language: eng
Abstract: The advanced knowledge of coarse-grained slurry flow behavior is important for safe, reliable, and economical design and operation of the pipeline transport. The effect of the mixture velocity, solid concentration, and pipe inclination on the coarse-grained particle – water mixtures flow behavior and pressure drop in the turbulent flow regime was experimentally studied in horizontal, vertical, and inclined pipe of inner diameter D = 100 mm. The respective experimental methods, including radiometric methods for particle concentration distribution in pipe cross-section, were used. Graded basalt gravel was used as a model of solid particles. Concentration distribution in the pipe cross-section and motion of particles along the horizontal pipe invert were also studied. The study revealed that the coarse-grained particle-water mixtures in the horizontal and inclined pipes were significantly stratified. The particles moved principally in a layer close to the pipe invert. However, for higher and moderate flow velocities particle saltation becomes dominant mode of particle conveying and particles moved also in the central and upper part of the pipe cross-section.
Keywords: concentration distribution; heterogeneous slurry; hydraulic conveying; pipe inclination; pressure drop
Project no.: GAP105/10/1574 (CEP)
Funding provider: GA ČR
Host item entry: 15th International Freight Pipeline society symposium, ISBN 978-80-87117-12-5
Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0234695
Permalink: http://www.nusl.cz/ntk/nusl-174828
The record appears in these collections:
Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers
Authors: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Krupička, Jan
Document type: Papers
Conference/Event: 15th International Freight Pipeline society symposium, Praha (CZ), 2014-06-24 / 2014-06-27
Year: 2014
Language: eng
Abstract: The advanced knowledge of coarse-grained slurry flow behavior is important for safe, reliable, and economical design and operation of the pipeline transport. The effect of the mixture velocity, solid concentration, and pipe inclination on the coarse-grained particle – water mixtures flow behavior and pressure drop in the turbulent flow regime was experimentally studied in horizontal, vertical, and inclined pipe of inner diameter D = 100 mm. The respective experimental methods, including radiometric methods for particle concentration distribution in pipe cross-section, were used. Graded basalt gravel was used as a model of solid particles. Concentration distribution in the pipe cross-section and motion of particles along the horizontal pipe invert were also studied. The study revealed that the coarse-grained particle-water mixtures in the horizontal and inclined pipes were significantly stratified. The particles moved principally in a layer close to the pipe invert. However, for higher and moderate flow velocities particle saltation becomes dominant mode of particle conveying and particles moved also in the central and upper part of the pipe cross-section.
Keywords: concentration distribution; heterogeneous slurry; hydraulic conveying; pipe inclination; pressure drop
Project no.: GAP105/10/1574 (CEP)
Funding provider: GA ČR
Host item entry: 15th International Freight Pipeline society symposium, ISBN 978-80-87117-12-5
Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0234695
Permalink: http://www.nusl.cz/ntk/nusl-174828
The record appears in these collections:
Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers
Record created 2014-07-24, last modified 2023-12-06