Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published January 2019 | Published
Journal Article Open

A minimal flow unit of the logarithmic layer in the absence of near-wall eddies and large scales


In the vicinity of walls, turbulent flows are found to be highly organized, consisting of streamwise rolls and low- and high-speed streaks (Klebanoff et al. 1962; Kline et al. 1967; Smith & Metzler 1983; Blackwelder & Eckelmann 1979; Johansson et al. 1987) that are involved in a quasi-periodic regeneration cycle (Robinson 1991; Panton 2001; Adrian 2007; Smits et al. 2011; Jiménez 2018). Important progress regarding the study of this regeneration cycle was made using the "minimal flow unit" approach, which indicated that buffer layer streaks can self-sustain even when motions at larger scales are inhibited and that their existence, therefore, relies on an autonomous process (Jiménez & Moin 1991). The observation that the buffer and viscous layers of wall-bounded flows can be simulated in periodic boxes of minimal dimensions has been useful in understanding wall turbulence since it enables the study of individual flow features in isolation from their mutual interactions.

Additional Information

© 2019 Stanford University. A.L.-D. acknowledges the support of NASA under grant no. NNX15AU93A and of ONR under grant no. N00014-16-S-BA10.

Attached Files

Published - 19_Bae.pdf


Files (951.8 kB)
Name Size Download all
951.8 kB Preview Download

Additional details

August 19, 2023
October 23, 2023