O meu artigo conjunto: "Numerical Study of a Turbulent Free Jet Using Different Turbulence Models"

COBEM 2005
6-11 de novembro de 2005
Ouro Preto

Simpósio: Energia e Fenômenos de Transporte


Numerical Study of a Turbulent Free Jet Using Different Turbulence Models

César Celis Pérez, Cláudio Veloso Barreto, Gonçalo Lopes, João N. E. Carneiro, Juliana K. Abrantes, Júlio Manoel Barros, Angela O. Nieckele

Dept. Eng. Mecânica – PUC/Rio

Abstract

Turbulent free jet flows are present on several processes and technological applications, also being widely used as a benchmark problem for turbulent models validation. In the present work, a numerical study was carried out using different types of turbulence models, including 1-equation (Spalart-Allmaras), 2-equations (k-e Standard, k-e Realizable, k-e RNG, k-w and k-w SST) and 5-equations (Reynolds Stress) models. The results of the models were compared to each other and to experimental data of Hussain et al. (1994). The self-similar profiles of mean velocities and turbulent stresses showed a good agreement with the referred work. The performance of the models was also evaluated based on the computational effort and the comparison with the literature data.
Key words: Turbulent Free Jet, Turbulence Models, Self-Similarity, Spalart-Allmaras, k-e, k-w, Reynolds Stress