Camera-measured velocity distribution in laboratory open-channel flow with intense transport of bimodal combined-load
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00367556" target="_blank" >RIV/68407700:21110/23:00367556 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.2478/johh-2023-0021" target="_blank" >https://doi.org/10.2478/johh-2023-0021</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2478/johh-2023-0021" target="_blank" >10.2478/johh-2023-0021</a>
Alternative languages
Result language
angličtina
Original language name
Camera-measured velocity distribution in laboratory open-channel flow with intense transport of bimodal combined-load
Original language description
An extended stereoscopic method, which identifies, and tracks particles based on their colour in solid-liquid flow, is tested for its capability to separately measure velocity distributions of particles of two fractions transported as bimodal sediment mixture in water flow through a laboratory flume. The principle of the tested method extension is a use of colour-based processing of images collected by two high-speed cameras which enables to filter out particles of one fraction from the image and leave particles of the other fraction in the image based on a selected colour hue range. The modified images are then processed by the original stereoscopic method to produce velocity distribution of particles of the individual fraction in the flow. The method extension is first tested in simple vertical flow carrying neutrally buoyant spherical particles of two distinct colours in a recirculation cell. In the next step, lightweight plastic particles of two fractions of different properties (size, shape, density) and colours are introduced to flow through a laboratory flume and velocity distributions of the two fractions are measured separately at flow conditions which mimic intense transport of bimodal combined-load in an open channel. Results exhibit a very good agreement with previous measurements with unimodal sediment in hydraulically similar flow.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
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
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Hydrology and Hydromechanics
ISSN
0042-790X
e-ISSN
1338-4333
Volume of the periodical
71
Issue of the periodical within the volume
3
Country of publishing house
SK - SLOVAKIA
Number of pages
10
Pages from-to
331-340
UT code for WoS article
001045936300010
EID of the result in the Scopus database
2-s2.0-85168305023