6 papers
Interaction between near-wall streaks and large-scale motions in turbulent channel flows
Zisong Zhou, Chun-Xiao Xu, Javier Jiménez
The interactions between the near-wall streaks and the large-scale motions (LSMs) of the outer region of wall-bounded turbulent flows are investigated. The co-supporting hypothesis…
Collective organisation and screening in two-dimensional turbulence
Javier Jiménez
Following recent evidence that the vortices in decaying two-dimensional turbulence can be classified into small--mobile, and large--quasi-stationary, this paper examines the eviden…
Logarithmic-layer turbulence: a view from the wall
Miguel P. Encinar, Javier Jiménez
The observability of the flow field away from the wall in turbulent channel flow is studied using only wall observations. Reconstructions are generated from noiseless but limited w…
Direct numerical simulation of statistically stationary and homogeneous shear turbulence and its relation to other shear flows
Atsushi Sekimoto, Siwei Dong, Javier Jiménez
Statistically stationary and homogeneous shear turbulence (SS-HST) is investigated by means of a new direct numerical simulation code, spectral in the two horizontal directions and…
The turbulent/nonturbulent interface in boundary layers
Guillem Borrell, Juan A. Sillero, Javier Jiménez
This video shows three-dimensional contours at two different values of enstrophy for a turbulent boundary layer up to . Its intention is to show how, what can be b…
The 3D structure of turbulent channels up to
Adrián Lozano-Durán, Javier Jiménez
Several time-resolved fluid dynamics videos of turbulent channels from to are presented. The videos show the temporal evolution of sweeps (…