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Název:
Flow of coarse-grained particles-water mixture in pipes
Autoři: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Krupička, Jan
Typ dokumentu: Příspěvky z konference
Konference/Akce: 15th International Freight Pipeline society symposium, Praha (CZ), 2014-06-24 / 2014-06-27
Rok: 2014
Jazyk: eng
Abstrakt: 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.
Klíčová slova: concentration distribution; heterogeneous slurry; hydraulic conveying; pipe inclination; pressure drop
Číslo projektu: GAP105/10/1574 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: 15th International Freight Pipeline society symposium, ISBN 978-80-87117-12-5
Instituce: Ústav pro hydrodynamiku AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na vyžádání prostřednictvím repozitáře Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0234695
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-174828
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav pro hydrodynamiku
Konferenční materiály > Příspěvky z konference
Autoři: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Krupička, Jan
Typ dokumentu: Příspěvky z konference
Konference/Akce: 15th International Freight Pipeline society symposium, Praha (CZ), 2014-06-24 / 2014-06-27
Rok: 2014
Jazyk: eng
Abstrakt: 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.
Klíčová slova: concentration distribution; heterogeneous slurry; hydraulic conveying; pipe inclination; pressure drop
Číslo projektu: GAP105/10/1574 (CEP)
Poskytovatel projektu: GA ČR
Zdrojový dokument: 15th International Freight Pipeline society symposium, ISBN 978-80-87117-12-5
Instituce: Ústav pro hydrodynamiku AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný na vyžádání prostřednictvím repozitáře Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0234695
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-174828
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav pro hydrodynamiku
Konferenční materiály > Příspěvky z konference
Záznam vytvořen dne 2014-07-24, naposledy upraven 2023-12-06.