On the influence of a large-scale coherent vortex on the turbulent cascade
Supérieure de Lyon, CNRS URA 1325 - 69364 Lyon, France
2 Universidad de Santiago de Chile - Casilla 307, Correo 2, Santiago, Chile
Accepted: 13 June 1996
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.
PACS: 47.20.-k – Hydrodynamic stability / 47.27.-i – Turbulent flows, convection, and heat transfer / 47.32.-y – Rotational flow and vorticity
© EDP Sciences, 1996