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Turbulent heat transport and its anisotropy in an impinging jet

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F15%3A00229992" target="_blank" >RIV/68407700:21220/15:00229992 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02063/epjconf_efm2014_02063.html" target="_blank" >http://www.epj-conferences.org/articles/epjconf/abs/2015/11/epjconf_efm2014_02063/epjconf_efm2014_02063.html</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1051/epjconf/20159202063" target="_blank" >10.1051/epjconf/20159202063</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Turbulent heat transport and its anisotropy in an impinging jet

  • Original language description

    The turbulent heat transport is anisotropic in many cases as reported by several researchers. RANS-based turbulence models use the turbulent viscosity when expressing the turbulent heat flux in the energy balance (analogy of the Reynolds stresses in themomentum balance). The turbulent (eddy) viscosity calculation comes from the Boussinesq analogy mainly and it represents just a scalar value, hence a possible anisotropy in the turbulent flow field cannot be simply transferred to the temperature field. The computational cost of a LES-based approach can be too prohibitive in complex cases, therefore simpler explicit algebraic heat flux models describing the turbulent heat flux in the time-averaged energy equation could be used to get more accurate CFD results. This paper compares several turbulence models for the case of a turbulent impinging jet and deals with a methodology of implementing a user-defined function describing the anisotropic turbulent heat flux in a CFD code.

  • 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/GA14-18955S" target="_blank" >GA14-18955S: Experimental and theoretical study of the convective heat transfer in turbulent swirling impinging jet.</a><br>

  • Continuities

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

Others

  • Publication year

    2015

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

    EFM14 - Experimental Fluid Mechanics 2014

  • ISBN

  • ISSN

    2101-6275

  • e-ISSN

  • Number of pages

    6

  • Pages from-to

    "02063"-"02063-p.6"

  • Publisher name

    Technical University of Liberec

  • Place of publication

    Liberec

  • Event location

    Český Krumlov

  • Event date

    Nov 18, 2014

  • Type of event by nationality

    EUR - Evropská akce

  • UT code for WoS article

    000358249900065