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Modelling of Supercritical Turbulent Flow ower an Inclined Backward-Facing Step in a Open Channel

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F11%3APU95732" target="_blank" >RIV/00216305:26110/11:PU95732 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Modelling of Supercritical Turbulent Flow ower an Inclined Backward-Facing Step in a Open Channel

  • Original language description

    The contribution deals with the experimental and numerical modelling of supercritical turbulent flow in an open channel with an inclined backward-facing step on its bottom. The step with the height h = 100 mm and the inclination angle alfa = 20 was placed in the water channel of the cross-section 200x200 mm. Experiments were carried out by means of the PIV and LDA measuring techniques. Numerical simulations were executed by the commercial software ANSYS CFX 12.0. Numerical results obtained by the two-equation SST model and the EARSM model completed by transport equations for turbulent energy and specific dissipation rate were compared with experimental data. The modelling was concentrated particularly on the flow pattern near the step including the possible flow separation and the corresponding changes of free surface. The agreement of numerical results obtained by means of the EARSM model with experimental data is quite good.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    BK - Liquid mechanics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA103%2F09%2F0977" target="_blank" >GA103/09/0977: Experimental and numerical modelling of turbulent flow with massive separation</a><br>

  • Continuities

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

Others

  • Publication year

    2011

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    17th International Conference Engineering Mechanics 2011

  • ISBN

    978-80-87012-33-8

  • ISSN

  • e-ISSN

  • Number of pages

    4

  • Pages from-to

    495-498

  • Publisher name

    Ústav termomechaniky AVČR

  • Place of publication

    Svratka

  • Event location

    Svratka

  • Event date

    May 9, 2011

  • Type of event by nationality

    CST - Celostátní akce

  • UT code for WoS article