Experimental evaluation of resistance of eroded bed in sediment laden open channel flow: combined load transport case
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00362791" target="_blank" >RIV/68407700:21110/22:00362791 - isvavai.cz</a>
Result on the web
<a href="https://efm.kez.tul.cz/" target="_blank" >https://efm.kez.tul.cz/</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Experimental evaluation of resistance of eroded bed in sediment laden open channel flow: combined load transport case
Original language description
A relation between the discharge and the flow depth in an open channel is quite sensitive to resistance (expressed by the friction coefficient) of the channel bottom. This relation is straightforward if the bottom is a fixed boundary, and the discharge is a result of one-phase (water) flow. The relation is considerably more complex if the channel bottom is an eroded mobile bed and the flow is solid-liquid flow. Sediment-transport experiments with various model lightweight sediments in a tilting flume of the Water Engineering Laboratory at Czech Technical University in Prague produced information suitable for an evaluation of the eroded bed resistance at conditions of intense bed load and intense combined load in the upper plane bed regime. An evaluation of the bed load condition has been published recently. This paper discusses a description and quantification of the bed resistance in the case of transported combined load, i.e., at the condition where a certain portion of the sediment is transported as bed load and the rest is transported as suspended load. The results show that the presence of transported sediment tends to increase the bed resistance and hence increases a flow depth for a certain discharge of water in an open channel with an eroded bed.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
<a href="/en/project/GA19-18411S" target="_blank" >GA19-18411S: Modelling of intense collisional sediment transport with turbulent suspension</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the International Conference Experimental Fluid Mechanics 2022
ISBN
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ISSN
2100-014X
e-ISSN
2100-014X
Number of pages
6
Pages from-to
172-177
Publisher name
EPJ Web of Conferences
Place of publication
Les Ulis Cedex A
Event location
Dvůr Kralové
Event date
Nov 29, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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