EXPERIMENTAL STUDY OF BED FRICTION IN STRATIFIED FLOW WITH VISCOPLASTIC CARRIER IN PIPE

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

EXPERIMENTAL STUDY OF BED FRICTION IN STRATIFIED FLOW WITH VISCOPLASTIC CARRIER IN PIPE

Popis výsledku v původním jazyce

The paper describes the observed behavior of a glass-bead bed driven to sliding by a Herschel-Bulkley liquid flowing in a 50-mm pipe. A transparent acrylic pipe in the horizontal section of our pipe rig enabled very clear visual observation of a stratified structure of the flow of the mixtures composed of transparent a Carbopol solution and transparent mono-size glass beads of the size 1.5 mm. The flow appeared to behave as a true two-layer system with the bed sliding ?en bloc? from the slip point at the deposition-limit velocity up to velocities at which a human eye could no longer follow particular grains in the bed. The flow was laminar above the stationary/sliding bed in the upper-plane bed regime. The fully-stratified structure of the slurry flowand its well defined conditions at low velocities provide an excellent opportunity to use the experimental data for a validation of a two-layer model. Based on the measured rheology of the carrier, measured integral parameters of slurry f

Název v anglickém jazyce

EXPERIMENTAL STUDY OF BED FRICTION IN STRATIFIED FLOW WITH VISCOPLASTIC CARRIER IN PIPE

Popis výsledku anglicky

The paper describes the observed behavior of a glass-bead bed driven to sliding by a Herschel-Bulkley liquid flowing in a 50-mm pipe. A transparent acrylic pipe in the horizontal section of our pipe rig enabled very clear visual observation of a stratified structure of the flow of the mixtures composed of transparent a Carbopol solution and transparent mono-size glass beads of the size 1.5 mm. The flow appeared to behave as a true two-layer system with the bed sliding ?en bloc? from the slip point at the deposition-limit velocity up to velocities at which a human eye could no longer follow particular grains in the bed. The flow was laminar above the stationary/sliding bed in the upper-plane bed regime. The fully-stratified structure of the slurry flowand its well defined conditions at low velocities provide an excellent opportunity to use the experimental data for a validation of a two-layer model. Based on the measured rheology of the carrier, measured integral parameters of slurry f

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of 17th International Conference on Transport And Sedimentation of Solids Particles

ISBN

978-83-927084-8-3

ISSN

0867-7964

e-ISSN

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Počet stran výsledku

10

Strana od-do

175-184

Název nakladatele

Wroclaw University of Environmental And Life Sciences

Místo vydání

Wroclaw

Místo konání akce

Delft

Datum konání akce

22. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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