Comptes Rendus
Large-eddy simulation of transition to turbulence in a heated annular channel
Comptes Rendus. Mécanique, Volume 333 (2005) no. 8, pp. 599-604.

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.

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.

Received:
Accepted:
Published online:
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

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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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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