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On the influence of a large scale coherent vortex on the turbulent cascade
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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Citation: Chillà, F., Pinton, J.-F., and Labbé, R.: On the influence of a large scale coherent vortex on the turbulent cascade, Nonlin. Processes Geophys., 3, 284-290, 1996. Bibtex EndNote Reference Manager
