Articles | Volume 3, issue 4
https://doi.org/10.5194/npg-3-284-1996
https://doi.org/10.5194/npg-3-284-1996
31 Dec 1996
 | 31 Dec 1996

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

F. Chillà, J.-F. Pinton, and R. Labbé

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.