Turbulent cascade in fully developed turbulent channel flow

A Apostolidis, JP Laval, JC Vassilicos - Journal of Fluid Mechanics, 2023 - cambridge.org
We show that Kolmogorov scale-by-scale equilibrium in the intermediate layer of a fully
developed turbulent channel flow is only achieved asymptotically around the Taylor length …

Turbulence organization and mean profile shapes in the stably stratified boundary layer: zones of uniform momentum and air temperature

M Heisel, PP Sullivan, GG Katul… - Boundary-Layer …, 2023 - Springer
A persistent spatial organization of eddies is identified in the lowest portion of the stably
stratified planetary boundary layer. The analysis uses flow realizations from published large …

On the mixing length eddies and logarithmic mean velocity profile in wall turbulence

M Heisel, CM De Silva, N Hutchins… - Journal of Fluid …, 2020 - cambridge.org
Since the introduction of the logarithmic law of the wall more than 80 years ago, the equation
for the mean velocity profile in turbulent boundary layers has been widely applied to model …

Uniform-momentum zones in a turbulent pipe flow

X Chen, YM Chung, M Wan - Journal of Fluid Mechanics, 2020 - cambridge.org
The characteristics and dynamics of the uniform-momentum zones (UMZ) and UMZ
interfaces in a fully developed turbulent pipe flow are studied using direct numerical …

Outer-layer structure arrangements based on the large-scale zero-crossings at moderate Reynolds number

Z Tang, Z Fan, L Chen, N Jiang - Physics of Fluids, 2021 - pubs.aip.org
The structural arrangements in the outer layer of turbulent boundary layer flows were
explored with large-field time-resolved particle image velocimetry measurements at …

Objective momentum barriers in wall turbulence

NO Aksamit, G Haller - Journal of Fluid Mechanics, 2022 - cambridge.org
We use the recent frame-indifferent theory of diffusive momentum transport to identify
internal barriers in wall-bounded turbulence. Formed by the invariant manifolds of the …

The chimera revisited: Wall-and magnetically-bounded turbulent flows

NT Basse - Fluids, 2024 - mdpi.com
This review is a first attempt at bringing together various concepts from research on wall-and
magnetically-bounded turbulent flows. Brief reviews of both fields are provided: The main …

Self-similar geometries within the inertial subrange of scales in boundary layer turbulence

M Heisel, CM de Silva, GG Katul… - Journal of Fluid …, 2022 - cambridge.org
The inertial subrange of turbulent scales is commonly reflected by a power law signature in
ensemble statistics such as the energy spectrum and structure functions–both in theory and …

Uniform momentum and temperature zones in unstably stratified turbulent flows

ST Salesky - Journal of Fluid Mechanics, 2023 - cambridge.org
Wall-bounded turbulent flows exhibit a zonal arrangement, in which streamwise velocity
organizes into uniform momentum zones (UMZs), separated by thin layers of elevated …

A self-sustaining process theory for uniform momentum zones and internal shear layers in high Reynolds number shear flows

B Montemuro, CM White, JC Klewicki… - Journal of Fluid …, 2020 - cambridge.org
Many exact coherent states (ECS) arising in wall-bounded shear flows have an asymptotic
structure at extreme Reynolds number asymptotic analysis is performed to explore the …