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Nonlinear Processes in Geophysics An interactive open-access journal of the European Geosciences Union
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Volume 3, issue 4
Nonlin. Processes Geophys., 3, 284–290, 1996
https://doi.org/10.5194/npg-3-284-1996
© Author(s) 1996. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

Special issue: Papers presented at the MFGA-IDT2 workshop: Astrophysical...

Nonlin. Processes Geophys., 3, 284–290, 1996
https://doi.org/10.5194/npg-3-284-1996
© Author(s) 1996. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  31 Dec 1996

31 Dec 1996

On the influence of a large scale coherent vortex on the turbulent cascade

F. Chillà, J.-F. Pinton1, and R. Labbé2,3 F. Chillà et al.
  • 1École Normale Supérieure de Lyon, Laboratoire de Physique, 46 allée d'Italie, F-69364 Lyon cedex 07, France
  • 2École Normale Supérieure de Lyon, Laboratoire de Physique, 46 allée d'Italie, F-69364 Lyon cedex 07, France
  • 3Present address: Universidad de Santiago de Chile, Casilla 307, Correo 2, Santiago, Chile

Abstract. We investigate the flow between coaxial rotating disks in the situation where a strong axial vortex is present over a turbulent background. This is nonstationary and inhomogeneous as is common in most turbulent geophysical flows. We describe the s scale statistics using tools recently introduced for homogeneous turbulent flows. It seems that the cascade cess is preserved although modified by the large coherent structure.

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