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Simulation of thermal transfer using the immersed boundary method and adaptive mesh

DOI: 10.1615/THMT-18.1040
pages 953-962

R. R. S. Melo
Faculdade de Engenharia Mecanica, Universidade Federal de Uberlandia, Av. Joao Naves de Avila 2121, 38408-144 Uberlandia, Brazil

Denise Kinoshita
Faculdade de Engenharia Mecanica, Universidade Federal de Uberlandia, Av. Joao Naves de Avila 2121, 38408-144 Uberlandia, Brazil

M. M. Villar
Faculdade de Engenharia Mecanica, Universidade Federal de Uberlandia, Av. Joao Naves de Avila 2121, 38408-144 Uberlandia, Brazil

R. Serfaty
CENPES, PETROBRAS, Av. 1, Ilha do Fundao, Rio de Janeiro, Brazil

Aristeu Silveira-Neto
Faculdade de Engenharia Mecanica, Universidade Federal de Uberlandia, Av. Joao Naves de Avila 2121, 38408-144 Uberlandia, Brazil

Abstrakt

In the present work the mathematical modeling and simulations of turbulent flows with thermal transfer are presented. Cartesian numerical mesh is used for a non Cartesian problem, thanks to the dynamic and thermal immersed boundary methodologies. Turbulence modeling was performed using the LES (Large Eddy Simulation) metolodology with the dynamic Smagorinsky subgrid-scale modeling. All the development was carried out using a computer code developed at home (MFSim - Multiphysic Simulator). In order to exemplify the functionalities of the computational tool, simulations of the natural convection were performed on a horizontal cylinder. Consistent qualitative results were obtained, revealing the dynamic structures characterizing the transition to turbulence. The corresponding statistical results compare well with the reference results published by other authors.

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