Experimental evaluation of bed friction and solids transport in steep flume

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00301946" target="_blank" >RIV/68407700:21110/16:00301946 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1002/cjce.22485" target="_blank" >http://dx.doi.org/10.1002/cjce.22485</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/cjce.22485" target="_blank" >10.1002/cjce.22485</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental evaluation of bed friction and solids transport in steep flume

Popis výsledku v původním jazyce

Experimental data on bed friction and solids transport in an open-channel flow at high bed shear are presented in this paper together with a discussion using analytical developments. Experiments were carried out using plastic particles transported in water above an erodible bed in a tilting flume. They confirmed that bed friction is affected by transport of solids for large bed shear stresses in the upper plane bed regime. Similarities in flow conditions were also observed between open-channel flows in steep slopes with intense solids transport, and stratified flows in slurry pipes. Furthermore, the experiments revealed two different sub-regimes for the upper plane bed regime in open channels. Formulae for the friction coefficient and the solids flowrate were proposed for an erodible bed with a developed shear layer. Measured velocity distribution indicated a linear velocity profile across a major part of the shear layer.

Název v anglickém jazyce

Experimental evaluation of bed friction and solids transport in steep flume

Popis výsledku anglicky

Experimental data on bed friction and solids transport in an open-channel flow at high bed shear are presented in this paper together with a discussion using analytical developments. Experiments were carried out using plastic particles transported in water above an erodible bed in a tilting flume. They confirmed that bed friction is affected by transport of solids for large bed shear stresses in the upper plane bed regime. Similarities in flow conditions were also observed between open-channel flows in steep slopes with intense solids transport, and stratified flows in slurry pipes. Furthermore, the experiments revealed two different sub-regimes for the upper plane bed regime in open channels. Formulae for the friction coefficient and the solids flowrate were proposed for an erodible bed with a developed shear layer. Measured velocity distribution indicated a linear velocity profile across a major part of the shear layer.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GAP105%2F12%2F1082" target="_blank" >GAP105/12/1082: Modelování intenzivního chodu splavenin za povodňových průtoků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Canadian Journal of Chemical Engineering

ISSN

0008-4034

e-ISSN

—

Svazek periodika

94

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

8

Strana od-do

1076-1083

Kód UT WoS článku

000376072800009

EID výsledku v databázi Scopus

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