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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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