About: Interfacial friction and transport in stratified flows

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Transport of coarse solids (medium sand and coarser) in slurry pipes is often at least partially stratified, and flowing slurry tends to form a layered structure with a real or virtual interface between two layers. Modelling of friction and transport conditions associated with the interface is crucial to predictive models for the slope of the energy grade line in settling slurry flows. Bed friction and transport are interrelated. At the interface, high bed shear agitates solids transport and transported solids can significantly increase bed friction. The paper discusses the authors’ recent results of experimental work and modelling efforts in describing bed friction and solids transport. The proposed friction and transport formulae are implemented in the authors’ layered model for stratified flows above and below the deposition-limit velocity (the threshold velocity at incipient sliding of the bed). A comparison with validation data indicates a very reasonable capability of the model to predict the slope of the energy grade line, the deposition-limit velocity, and in case of flow above stationary deposit also the thickness of the deposit Transport of coarse solids (medium sand and coarser) in slurry pipes is often at least partially stratified, and flowing slurry tends to form a layered structure with a real or virtual interface between two layers. Modelling of friction and transport conditions associated with the interface is crucial to predictive models for the slope of the energy grade line in settling slurry flows. Bed friction and transport are interrelated. At the interface, high bed shear agitates solids transport and transported solids can significantly increase bed friction. The paper discusses the authors’ recent results of experimental work and modelling efforts in describing bed friction and solids transport. The proposed friction and transport formulae are implemented in the authors’ layered model for stratified flows above and below the deposition-limit velocity (the threshold velocity at incipient sliding of the bed). A comparison with validation data indicates a very reasonable capability of the model to predict the slope of the energy grade line, the deposition-limit velocity, and in case of flow above stationary deposit also the thickness of the deposit (en)
Title	Interfacial friction and transport in stratified flows Interfacial friction and transport in stratified flows (en)
skos:prefLabel	Interfacial friction and transport in stratified flows Interfacial friction and transport in stratified flows (en)
skos:notation	RIV/68407700:21110/14:00226193!RIV15-GA0-21110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP105/12/1082)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Matoušek, Václav Krupička, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	22380
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/14:00226193
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	dredging hydraulics; hydrodynamics; river engineering (en)
http://linked.open.../riv/klicoveSlovo	dredging hydraulics river engineering hydrodynamics
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[4B25B60CEEE7]
http://linked.open...i/riv/nazevZdroje	Maritime Engineering
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Modeling of intense transport of sediment in flood flow
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	167
http://linked.open...iv/tvurceVysledku	Krupička, Jan Matoušek, Václav
http://linked.open...ain/vavai/riv/wos	000348610300004
issn	1741-7597
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1680/maen.14.00005
http://localhost/t...ganizacniJednotka	21110

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