Inscrição na biblioteca: Guest
Third Symposium on Turbulence and Shear Flow Phenomena
June, 25-27, 2003, International Center, Sendai, Japan

DOI: 10.1615/TSFP3

ON THE PREDICTION OF SWIRLING INDUCED RECIRCULATION

pages 377-382
DOI: 10.1615/TSFP3.640
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RESUMO

The present paper is devoted to the assessment of several turbulence models for the prediction of swirling induced recirculation. In addition to the Launder-Sharma model which is used as reference model, several turbulence models have been assessed. The first model investigated is the Launder-Sharma model with a rotation correction. The performance of the cubic Craft-Launder-Suga model as well as the Reynolds stress modelings are also evaluated. For Reynolds stress model, both the IP and SSG model have been assessed. Computation has been performed on three confined swirling flow configurations involving a central toroidal recirculation zone. Numerical results reveal that the prediction of swirling induced recirculation remains a challenging task for turbulence modelization. None of the tested turbulence models is capable to give satisfactory prediction for the swirling flows investigated in the present study. Among all turbulence models tested, the best compromise is obtained by the linear eddy-viscosity model with rotation correction rather than by more complex turbulence models such as non-linear cubic or Reynolds stress models.

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