Coherent Structures in Wall-Bounded Turbulence
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Fluid Mechanics"
DOI: 10.1007/978-3-319-20388-1_3
Abstract: The current knowledge about some particular kinds of coherent structures in the logarithmic and outer layers of wall-bounded turbulent flows is briefly reviewed. It is shown that a lot has been learned about their geometry,… read more here.
Keywords: structures wall; bounded turbulence; wall bounded; coherent structures ... See more keywords
Statistics of turbulence in the energy-containing range of Taylor–Couette compared to canonical wall-bounded flows
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2017.625
Abstract: Considering structure functions of the streamwise velocity component in a framework akin to the extended self-similarity hypothesis (ESS), de Silva et al. (J. Fluid Mech., vol. 823, 2017, pp. 498–510) observed that remarkably the large-scale… read more here.
Keywords: taylor couette; canonical wall; energy containing; containing range ... See more keywords
A framework for input–output analysis of wall-bounded shear flows
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.418
Abstract: We propose a new framework to evaluate input–output amplification properties of nonlinear models of wall-bounded shear flows, subject to both square integrable and persistent disturbances. We focus on flows that are spatially invariant in one… read more here.
Keywords: input output; input; shear flows; bounded shear ... See more keywords
Dynamics of shear-layer coherent structures in a forced wall-bounded flow
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.839
Abstract: Abstract A model problem for analysing the interaction between coherent structures in shear flows with the presence of a convective instability is proposed in this work. Starting from Couette flow, a permanent forcing in the… read more here.
Keywords: wall bounded; bounded flow; flow; coherent structures ... See more keywords
Uncovering the forcing statistics in stochastic linear models for compressible wall-bounded turbulence
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.10339
Abstract: Abstract Modelling the nonlinear forcing is critical for linear models based on resolvent or input–output analyses. For compressible wall-bounded turbulence, little is known on what the real forcing looks like due to limited data, so… read more here.
Keywords: wall bounded; bounded turbulence; linear models; forcing statistics ... See more keywords
A model spectrum for turbulent wall-bounded flow
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2025.10428
Abstract: Abstract A model is proposed for the one-dimensional spectrum and streamwise Reynolds stress in pipe flow for arbitrarily large Reynolds numbers. Constructed in wavenumber space, the model comprises four principal contributions to the spectrum: streaks,… read more here.
Keywords: spectrum turbulent; wall bounded; model spectrum; turbulent wall ... See more keywords
Particle dynamics in wall-bounded thermal counterflow of superfluid helium
Sign Up to like & getrecommendations! Published in 2017 at "Physics of Fluids"
DOI: 10.1063/1.4984913
Abstract: The motions of relatively small particles in wall-bounded thermal counterflow of superfluid helium are experimentally investigated, above 1 K, by using the particle tracking velocimetry technique. The effect of a solid boundary on this quantum… read more here.
Keywords: wall bounded; counterflow superfluid; bounded thermal; wall ... See more keywords
Direct simulation of stably stratified wall-bounded turbulence using the lattice Boltzmann method
Sign Up to like & getrecommendations! Published in 2023 at "Physics of Fluids"
DOI: 10.1063/5.0147475
Abstract: The lattice Boltzmann method (LBM) is employed to simulate stratified plane Couette (SPC) flows in their statistically stationary turbulent state. The aim is to assess the suitability of the LBM for direct simulation of wall-bounded,… read more here.
Keywords: wall; wall bounded; boltzmann method; lattice boltzmann ... See more keywords
Minimal flow unit of wall-bounded high-pressure transcritical turbulence
Sign Up to like & getrecommendations! Published in 2024 at "Physics of Fluids"
DOI: 10.1063/5.0243832
Abstract: The minimum domain size required to maintain fully developed wall-bounded turbulent flow in high-pressure transcritical regimes is analyzed using direct numerical simulations. The computations involve carbon dioxide at supercritical conditions with pressure P/Pc=2 (subscript c… read more here.
Keywords: pressure; flow unit; wall bounded; pressure transcritical ... See more keywords
On the prediction capabilities of two SGS models for large-eddy simulations of turbulent incompressible wall-bounded flows in OpenFOAM
Sign Up to like & getrecommendations! Published in 2019 at "Cogent Engineering"
DOI: 10.1080/23311916.2019.1679067
Abstract: Abstract A comprehensive evaluation of the prediction capabilities of two Sub-Grid-Scale (SGS) models, for Large-Eddy Simulations (LES) of incompressible turbulent flows, is performed by studying two cases of flows through wall-bounded domains: a standard smooth-wall… read more here.
Keywords: sgs models; capabilities two; prediction capabilities; wall bounded ... See more keywords
Self-sustaining processes at all scales in wall-bounded turbulent shear flows
Sign Up to like & getrecommendations! Published in 2017 at "Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences"
DOI: 10.1098/rsta.2016.0088
Abstract: We collect and discuss the results of our recent studies which show evidence of the existence of a whole family of self-sustaining motions in wall-bounded turbulent shear flows with scales ranging from those of buffer-layer… read more here.
Keywords: bounded turbulent; shear flows; turbulent shear; wall bounded ... See more keywords