Assessment of turbulence RANS models for axysimmetric round free jet problem
DOI:
https://doi.org/10.4025/actascitechnol.v33i4.8312Keywords:
computational fluids dynamics, finite volume, turbulent free jet, turbulence RANS modelsAbstract
In the present study, the problem of axisymmetric round free jet was numerically solved. The governing equations (continuity, momentum, energy and turbulence) were discretized using the finite volume method. In order to determine which models provide the best prediction for the flow field of a turbulent free jet, three models (standard k-ε, realizable k-ε and v2-f) were tested on the following flow regimes: incompressible, subsonic and over-expanded supersonic. The numerical results from each simulated case were compared with experimental available data in the literature. None of the turbulence models tested predicted adequately the three flow regimes. Nevertheless, according to results, the k-ε realizable model presented better agreement to the experimental data for the incompressible and supersonic regimes, whereas the v2-f model better predicted the flow for subsonic regime.Downloads
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Published
2011-04-14
How to Cite
Strí¶her, G. R., Nicoleti, J. F., Zaparoli, E. L., Strí¶her, G. L., & Andrade, C. R. de. (2011). Assessment of turbulence RANS models for axysimmetric round free jet problem. Acta Scientiarum. Technology, 33(4), 425–433. https://doi.org/10.4025/actascitechnol.v33i4.8312
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Chemical Engineering
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