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Experimental Investigation of Vortex Structures in Wake of Hyperboloid-Shaped Model by Means of 2D Particle Image Velocimetry Measurement

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00317734" target="_blank" >RIV/68407700:21220/18:00317734 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1051/epjconf/201818002004" target="_blank" >http://dx.doi.org/10.1051/epjconf/201818002004</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1051/epjconf/201818002004" target="_blank" >10.1051/epjconf/201818002004</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Experimental Investigation of Vortex Structures in Wake of Hyperboloid-Shaped Model by Means of 2D Particle Image Velocimetry Measurement

  • Original language description

    This paper deals with flow around a bluff body of hyperboloid shape. It consists of results gathered in the course of research by means of Particle Image Velocimetry (PIV). The experiments were carried out by means of low-frequency 2D PIV in a range of Reynolds numbers from 40000 to 50000. A hyperboloid-shaped model was measured in a wind tunnel with a modelled atmospheric boundary layer (and additionally, in a low-speed wind tunnel with low turbulence). The model was tested in a subcritical range of Reynolds numbers and various planes in a wake of the model were captured with the intention of getting an estimation of 3D flow structures. The tunnel with the modelled atmospheric boundary layer has a high rate of turbulence, so the influence of the turbulence of incoming flow on the wake could be outlined. The ratio of the height of the model to a thickness of the modelled boundary layer in the tunnel was 1/3, meaning the turbulence in the boundary layer strongly influenced the flow around the model; it suppresses the wake which leads to a lot shorter area of recirculation than low turbulence incoming flow would cause.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20302 - Applied mechanics

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2018

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    EFM 17 - Experimental Fluid Mechanics 2017

  • ISBN

  • ISSN

    2100-014X

  • e-ISSN

    2100-014X

  • Number of pages

    6

  • Pages from-to

  • Publisher name

    EDP Sciences - Web of Conferences

  • Place of publication

    Les Ulis Cedex A

  • Event location

    Mikulov

  • Event date

    Nov 21, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000454317800005