INVESTIGADORES
NIGRO Norberto Marcelo
congresos y reuniones científicas
Título:
NUMERICAL SIMULATION OF NATURAL CONVECTION PHENOMENA
Autor/es:
CORZO SANTIAGO; MARQUEZ DAMIAN, SANTIAGO; RAMAJO DAMIAN; NIGRO NORBERTO
Lugar:
Rosario
Reunión:
Congreso; ENIEF 2011; 2011
Institución organizadora:
AMCA
Resumen:
Natural convection heat transfer associated to fluid-dynamics phenomena has been extensively stud-ied in many applications of scientific and industrial areas. Numerous benchmarks provide numerical andexperimental data of these phenomena in a wide range of Rayleigh (Ra) numbers.Three dimensional high Ra number regimes are particularly challenging to simulate due to instabilitessensitivity, need of correction of turbulence modeling and so on. The literature on this topic is scarce.In this paper Fluent R and OpenFOAM R codes have been used to assess the Boussinesq approximationfor a wide range of Ra numbers 103 < Ra < 108 for two dimensional (square cavity) and three dimen-sional (cubic cavity) cases. High Ra number cases are particularly discussed showing model limitationsand code capabilities to cope the natural convection phenomena. Results are compared with classicalbenchmark cases available in the literature, finding excellent agreement with both experimental and nu-merical data. Underlying theoretical models and implementantion are explained in depth, particularlyfor OpenFOAM R code serving as a reference.
