variavel0=<b>Elie Luis Martínez Padilla</b> - epadilla@mecanica.ufu.br Universidade Federal de Uberlândia
<b>Aristeu da Silveira Neto</b> - aristeus@mecanica.ufu.br Universidade Federal de Uberlândia
<b>Abstract.</b> Large-Eddy Simulation using Smagorinsky and dynamic sub-grid scale models was used to numerically analyse the natural convection, in transitional regime, over a heated and horizontal cylinder. Situations governed by high Rayleigh numbers were simulated. The beginning of the transition process was indicated. The results were compared with experimental data. The dynamic sub-grid scale model gives better results, when compared with the Smagorinsky model.
<b>Keywords.</b> Natural convection, transition, large-eddy simulation, sub-grid scale model.