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
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
BK - Liquid mechanics
OECD FORD branch
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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
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ISSN
2101-6275
e-ISSN
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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