Heat transfer in a confined impinging jet with swirling velocity component
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F17%3A00313332" target="_blank" >RIV/68407700:21220/17:00313332 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.epj-conferences.org/articles/epjconf/abs/2017/12/epjconf_efm2017_02091/epjconf_efm2017_02091.html" target="_blank" >https://www.epj-conferences.org/articles/epjconf/abs/2017/12/epjconf_efm2017_02091/epjconf_efm2017_02091.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/201714302091" target="_blank" >10.1051/epjconf/201714302091</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Heat transfer in a confined impinging jet with swirling velocity component
Popis výsledku v původním jazyce
Abstract. Heat transfer measurements based on an infrared experimental method (TOIRT) are compared with CFD simulations of a confined impinging jet with tangential velocity component. The tangential velocity component added to a pure impinging jet introduces into the flow field and heat transfer some similarities with real industrial processes like agitated vessels with axial-flow impellers. The tangential velocity component signifi cantly influences the velocity field and heat transfer intensity in the stagnant region when compared to the classic impinging jet characteristics. Several turbulence models were used in numerical simulations of an agitated vessel with axial-flow impeller in a draft tube. Heat transfer coefficients at the vessel bottom were evaluated using the TOIRT method and compared with numerical results. The lateral heat conduction in the impinged wall was analysed with the conclusion that it has relatively small impact on the measured heat transfer coefficients. Quite good agreement of experimental data and simulation results was achieved concerning the size and position of the heat transfer maximum at the vessel bottom.
Název v anglickém jazyce
Heat transfer in a confined impinging jet with swirling velocity component
Popis výsledku anglicky
Abstract. Heat transfer measurements based on an infrared experimental method (TOIRT) are compared with CFD simulations of a confined impinging jet with tangential velocity component. The tangential velocity component added to a pure impinging jet introduces into the flow field and heat transfer some similarities with real industrial processes like agitated vessels with axial-flow impellers. The tangential velocity component signifi cantly influences the velocity field and heat transfer intensity in the stagnant region when compared to the classic impinging jet characteristics. Several turbulence models were used in numerical simulations of an agitated vessel with axial-flow impeller in a draft tube. Heat transfer coefficients at the vessel bottom were evaluated using the TOIRT method and compared with numerical results. The lateral heat conduction in the impinged wall was analysed with the conclusion that it has relatively small impact on the measured heat transfer coefficients. Quite good agreement of experimental data and simulation results was achieved concerning the size and position of the heat transfer maximum at the vessel bottom.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20301 - Mechanical engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/GA14-18955S" target="_blank" >GA14-18955S: Experimentální a teoretická studie konvektivního přenosu tepla v rotujícím turbulentním impaktním proudu.</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
EFM16 – Experimental Fluid Mechanics 2016
ISBN
—
ISSN
2100-014X
e-ISSN
2100-014X
Počet stran výsledku
8
Strana od-do
—
Název nakladatele
EDP Sciences
Místo vydání
Les Ulis
Místo konání akce
Mariánské Lázně
Datum konání akce
15. 11. 2016
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
000407743800093