Hierarchy of minimal flow units in the logarithmic layer

By O. Flores, Javier Jiménez. 2010

158 citations recorded by the source corpus.

The minimal simulation boxes of the buffer layer of turbulent channels can be extended to the logarithmic and outer regions, where they contain a segment of streamwise velocity streak, and a vortex cluster. Smaller boxes restrict “healthy” turbulence closer to the wall, to a layer whose thickness scales with the spanwise size of the box. These minimal boxes burst quasiperiodically, and the bursting period for a band of wall distances grows linearly away from the wall, independently of the box size within the limits within which turbulence is well represented.

Subfields: Computational Mechanics, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/04739b9ea2f939f45b322b19d3f06e86927dff49

Citations in the corpus

• Time-resolved evolution of coherent structures in turbulent channels: characterization of eddies and cascades (2012, unknown): “This agrees with the results of Flores & Jimenez (2010), who noted that strong sweeps and ejections in a small channel move across the logarithmic layer with surprisingly constant velocities.”