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Communication Dans Un Congrès Année : 2011

Confinement of turbulent flows with rotation effects with a penalization method

Résumé

We want to analyse the structuration and dynamics of homogeneous turbulence in a cylindrical container with open periodic ends, placed in a rotating frame. To that extent, we performed pseudo-spectral Direct Numerical Simulations at di erent Rossby and Reynolds numbers using a penalization technique to take into account the radial con nement. A rst part of the presentation is dedicated to the validation of this numerical method by considering the impact of a vortex ring on a at \penalized" wall and compare the results obtained with the existing experimental data. A second part will then describe the dynamics of the cylindrical ow as well as its anisotropic structure and its main Lagrangian statistics.
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Dates et versions

hal-00600596 , version 1 (15-06-2011)

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  • HAL Id : hal-00600596 , version 1

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Clément Jause-Labert, Fabien S. Godeferd. Confinement of turbulent flows with rotation effects with a penalization method. EUROMECH Colloquium 525 - Instabilities and transition in three-dimensional flows with rotation, Jun 2011, Ecully, France. ⟨hal-00600596⟩
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