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Symmetry of turbulent characteristics inside urban intersection

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F07%3A00094505" target="_blank" >RIV/61388998:_____/07:00094505 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Symmetry of turbulent characteristics inside urban intersection

  • Original language description

    The wind-tunnel modelling of dispersion is very sensitive to central symmetry. The asymmetry of concentration field inside the symmetrical model is often caused by two causes: inappropriate inlet conditions or non-symmetric set-up of model. The project has carried out the flow measurements by Laser Doppler Anemometer's probe merged into the tunnel. The aim was to investigate the flow processes inside the tunnel body-tube itself ? i.e. without the model and inside the model of a symmetrical urban intersection. The influence of wind direction and model arrangement suppressing the lateral flow was tested. The largest deviations from symmetry were caused by the circumfluence of the measuring devices.

  • Czech name

    Symetrie turbulentních charakteristik uvnitř městské křižovatky

  • Czech description

    Fyzikální modelování rozptylu je velmi citlivé na osovou symetrii. Asymetrie pole koncentrace je často způsobená dvěma faktory: nevhodnými vstupními podmínkami nebo nesymetrickou geometrií modelu. Experiment použil metodu LDA se sondou vnořenou do tunelu. Cílem bylo proměřit proudové procesy jednak v těle tunelu samotném, jednak na modelu symetrické křižovatky. Byl testován vliv směru proudění a vliv laterálních proud?. Největší vliv na asymetrii mělo obtékání měřících zařízení.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    DG - Atmospheric sciences, meteorology

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    Colloquium FLUID DYNAMICS 2007

  • ISBN

    978-80-87012-07-9

  • ISSN

  • e-ISSN

  • Number of pages

    2

  • Pages from-to

    35-36

  • Publisher name

    Institute of Thermomechanics AS CR, v. v. i.

  • Place of publication

    Praha

  • Event location

    Praha

  • Event date

    Oct 24, 2007

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article