1996•Europhysics Letters (EPL)Open access

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

Francesca Chillà, J.-F. Pinton, Raúl Labbé

Abstract

We investigate the flow between coaxial co-rotating disks in the situation where a strong axial vortex is present over a turbulent background. We show that concepts recently introduced for homogeneous turbulent flows can be applied for the study of inhomogeneous turbulence of this kind. It seems that the cascade process is preserved although modified by the large-scale coherent structure.

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Key concepts: Turbulence, Cascade, Vortex, Lagrangian coherent structures, Physics, Scale (ratio), Mechanics, Coaxial