About: Model of rough bed for numerical simulation of saltation

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The present paper offers a model of rough bottom for simulation of bed load transport. In the simulation, the bed load transport or sand motion happens in the open or close conduits with averaged turbulent flow. In the model, the channel bed consists of identical spherical particles distributed in space in a special way. In the vertical direction, the particles are dispersed according to a Gaussian distribution with a definite standard deviation. In the horizontal plane, the particles have a compact hexagonal packing. Hereby, a bed structure is described by two parameters: size of bed particles and their standard deviation in the vertical direction. A simple formula is proposed connecting bed roughness with the above-mentioned bed parameters. The dependencies of averaged saltation parameters (length and height of one jump) on bed structure are obtained here. The present paper offers a model of rough bottom for simulation of bed load transport. In the simulation, the bed load transport or sand motion happens in the open or close conduits with averaged turbulent flow. In the model, the channel bed consists of identical spherical particles distributed in space in a special way. In the vertical direction, the particles are dispersed according to a Gaussian distribution with a definite standard deviation. In the horizontal plane, the particles have a compact hexagonal packing. Hereby, a bed structure is described by two parameters: size of bed particles and their standard deviation in the vertical direction. A simple formula is proposed connecting bed roughness with the above-mentioned bed parameters. The dependencies of averaged saltation parameters (length and height of one jump) on bed structure are obtained here. (en)
Title	Model of rough bed for numerical simulation of saltation Model of rough bed for numerical simulation of saltation (en)
skos:prefLabel	Model of rough bed for numerical simulation of saltation Model of rough bed for numerical simulation of saltation (en)
skos:notation	RIV/67985874:_____/14:00429343!RIV15-GA0-67985874
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA103/09/1718), P(GAP105/10/1574)
http://linked.open...iv/cisloPeriodika	October
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Vlasák, Pavel Kharlamova, Irina
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	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	29744
http://linked.open...ai/riv/idVysledku	RIV/67985874:_____/14:00429343
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	saltation; bed load transport; rough bed; armoured bed; bed roughness (en)
http://linked.open.../riv/klicoveSlovo	rough bed bed load transport bed roughness saltation armoured bed
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[317EB9A311DD]
http://linked.open...i/riv/nazevZdroje	European journal of environmental and civil 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	Flow of concentrated and complex slurries in closed conduits Numerical model of the bed load transport of particle and cluster of particles under variable flow conditions in a channel
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Vlasák, Pavel Kharlamova, Irina
http://linked.open...ain/vavai/riv/wos	000348321300007
issn	1964-8189
number of pages	20 (xsd:int)
http://bibframe.org/vocab/doi	10.1080/19648189.2014.968741

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