About: On the Relation between Bed Friction and Sediment Transport in the Upper Plane Bed Regime

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About: On the Relation between Bed Friction and Sediment Transport in the Upper Plane Bed Regime Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In the upper plane bed (UPB) regime, bed friction and sediment transport are interrelated. High bed shear agitates sediment transport and transported sediment can significantly increase bed friction. The log-law for bed friction employs a roughness parameter a size of which is related to the characteristic size of a bed grain. This approach is fine for weak transport of sediment but fails when the transport becomes intense. For intense transport, the bed roughness parameter should be related to the Shields parameter and this may cause troubles in flow computations. A simple method is suggested for predicting the bed friction coefficient using the same parameters for both weak- and intense transport of sediment in the UPB-regime. New experimental material collected in an enclosed rectangular pipe supports considerations used in developing the proposed method. In the upper plane bed (UPB) regime, bed friction and sediment transport are interrelated. High bed shear agitates sediment transport and transported sediment can significantly increase bed friction. The log-law for bed friction employs a roughness parameter a size of which is related to the characteristic size of a bed grain. This approach is fine for weak transport of sediment but fails when the transport becomes intense. For intense transport, the bed roughness parameter should be related to the Shields parameter and this may cause troubles in flow computations. A simple method is suggested for predicting the bed friction coefficient using the same parameters for both weak- and intense transport of sediment in the UPB-regime. New experimental material collected in an enclosed rectangular pipe supports considerations used in developing the proposed method. (en)
Title	On the Relation between Bed Friction and Sediment Transport in the Upper Plane Bed Regime On the Relation between Bed Friction and Sediment Transport in the Upper Plane Bed Regime (en)
skos:prefLabel	On the Relation between Bed Friction and Sediment Transport in the Upper Plane Bed Regime On the Relation between Bed Friction and Sediment Transport in the Upper Plane Bed Regime (en)
skos:notation	RIV/68407700:21110/13:00216140!RIV14-GA0-21110___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GAP105/12/1082)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Matoušek, Václav Krupička, Jan
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	93950
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/13:00216140
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Intense transport; Hyperconcentrated flow; Bed load; Enclosed pipe; Experiment (en)
http://linked.open.../riv/klicoveSlovo	Experiment Bed load Enclosed pipe Hyperconcentrated flow Intense transport
http://linked.open...ontrolniKodProRIV	[40511D5615BE]
http://linked.open...v/mistoKonaniAkce	Chengdu
http://linked.open...i/riv/mistoVydani	Beijing
http://linked.open...i/riv/nazevZdroje	Proceedings of the 35th IAHR World Congress
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	2013
http://linked.open...iv/tvurceVysledku	Krupička, Jan Matoušek, Václav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-09-08 (xsd:date)
number of pages	7 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tsinghua University Press/Springer
https://schema.org/isbn	978-7-89414-588-8
http://localhost/t...ganizacniJednotka	21110

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