Large-eddy simulation of transition to turbulence in a heated annular channel

Elie Luis M. Padilla; Aristeu Silveira-Neto

doi:10.1016/j.crme.2005.07.016

Large-eddy simulation of transition to turbulence in a heated annular channel
[Simulation des grandes échelles de la transition à la turbulence dans un canal annulaire chauffé]

Présenté par : Marcel Lesieur

Elie Luis M. Padilla ¹ ; Aristeu Silveira-Neto ¹

¹ School of Mechanical Engineering, Federal University of Uberlândia, Uberlândia-MG, Brazil 38400-902

Comptes Rendus. Mécanique, Volume 333 (2005) no. 8, pp. 599-604.

Résumé
Abstract

On développe des simulation des grandes échelles tridimensionnelles de la convection naturelle dans un anneau horizontal, grâce au modèle sous-maille de Smagorinsky dynamique. L'apparition de la transition à la turbulence et des régimes turbulents sont analysés. On étudie aussi les charactéristiques des écoulements instables et leur influence sur les mécanismes d'échange thermique.

One carries out three-dimensional large-eddy simulations of natural convection in a horizontal annulus using Smagorinsky's dynamic subgrid model. The onset of transition to turbulence and turbulent regimes are analyzed. The characteristics of unstable flows and their influence on the heat-transfer process are studied.

Reçu le : 2004-12-09
Accepté le : 2004-12-14
Publié le : 2005-08-01

DOI : 10.1016/j.crme.2005.07.016

Keywords: Heat transfer, Computational fluid dynamics, Natural convection, Transition to turbulence, Large-eddy simulation, Dynamic subgrid model, Chaos
Mot clés : Transferts thermiques, Dynamique des fluides numérique, Convection naturelle, Transition à la turbulence, Simulation des grandes échelles, Modèle sous-maille dynamique, Chaos

Affiliations des auteurs :

Elie Luis M. Padilla ¹ ; Aristeu Silveira-Neto ¹

¹ School of Mechanical Engineering, Federal University of Uberlândia, Uberlândia-MG, Brazil 38400-902

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     title = {Large-eddy simulation of transition to turbulence in a heated annular channel},
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     pages = {599--604},
     publisher = {Elsevier},
     volume = {333},
     number = {8},
     year = {2005},
     doi = {10.1016/j.crme.2005.07.016},
     language = {en},
}

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Elie Luis M. Padilla; Aristeu Silveira-Neto. Large-eddy simulation of transition to turbulence in a heated annular channel. Comptes Rendus. Mécanique, Volume 333 (2005) no. 8, pp. 599-604. doi : 10.1016/j.crme.2005.07.016. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2005.07.016/

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