Original title: Coarse-grained particles conveying along a pipe bed
Authors: Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří ; Kysela, Bohuš
Document type: Papers
Conference/Event: ENGINEERING MECHANICS 2013 /19./, Svratka (CZ), 2013-05-13 / 2013-05-16
Year: 2013
Language: eng
Abstract: The paper describes the results of a flow visualisation of model coarse-grained fully stratified particle-water mixtures. Investigation was focussed on study of the particle behaviour and carrier liquid and conveyed particles local velocities. Glass balls and washed graded pebble gravel of mean diameter of 6 mm were conveyed by water in a horizontal smooth pipe loop with a transparent pipe viewing section of inner diameter 40 mm. Particle movement along the pipe invert and particulate stationary bed, created by two layers of spherical particles of the same size as the conveyed particles, was studied. The effect of stationary bed on local velocity values of the carrier liquid and conveyed particles were determined. It was conducted that the maximum liquid velocity is significantly shifted from pipe centre to a higher position in the flow pattern with stationary bed.
Keywords: coarse-grained slurry; flow structure; liquid local velocity; particle velocity; visualisation
Project no.: GAP105/10/1574 (CEP)
Funding provider: GA ČR
Host item entry: ENGINEERING MECHANICS 2013, ISBN 978-80-87012-46-8, ISSN 1805-8248

Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available at the particular institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0225988

Permalink: http://www.nusl.cz/ntk/nusl-161482


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Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers