Dynamic mode decomposition and its variants

PJ Schmid - Annual Review of Fluid Mechanics, 2022 - annualreviews.org
Dynamic mode decomposition (DMD) is a factorization and dimensionality reduction
technique for data sequences. In its most common form, it processes high-dimensional …

[HTML][HTML] Turbulent drag reduction by polymer additives: Fundamentals and recent advances

L ** - Physics of Fluids, 2019 - pubs.aip.org
A small amount of polymer additives can cause substantial reduction in the energy
dissipation and friction loss of turbulent flow. The problem of polymer-induced drag …

On the nature of the transition between roll and cellular organization in the convective boundary layer

ST Salesky, M Chamecki, E Bou-Zeid - Boundary-layer meteorology, 2017 - Springer
Both observational and numerical studies of the convective boundary layer (CBL) have
demonstrated that when surface heat fluxes are small and mean wind shear is strong …

Prediction of turbulent channel flow using Fourier neural operator-based machine-learning strategy

Y Wang, Z Li, Z Yuan, W Peng, T Liu, J Wang - Physical Review Fluids, 2024 - APS
Fast and accurate predictions of turbulent flows are of great importance in the science and
engineering field. In this paper, we investigate the implicit U-Net enhanced Fourier neural …

Experimental characterization of the turbulent boundary layer over a porous trailing edge for noise abatement

AR Carpio, RM Martínez, F Avallone, D Ragni… - Journal of Sound and …, 2019 - Elsevier
The hydrodynamic and acoustic fields for a NACA 0018 with solid and porous trailing edge
inserts are investigated. The porous inserts, covering 20% of the chord, are manufactured …

Flat plate drag reduction using plasma-generated streamwise vortices

XQ Cheng, CW Wong, F Hussain… - Journal of Fluid …, 2021 - cambridge.org
We present an experimental study of a turbulent boundary layer (TBL) control on a flat plate
using plasma actuators. Three different configurations of the actuators produce spanwise …

Buoyancy effects on large-scale motions in convective atmospheric boundary layers: implications for modulation of near-wall processes

ST Salesky, W Anderson - Journal of Fluid Mechanics, 2018 - cambridge.org
A number of recent studies have demonstrated the existence of so-called large-and very-
large-scale motions (LSM, VLSM) that occur in the logarithmic region of inertia-dominated …

Three-dimensional hole size (3DHS) approach for water flow turbulence analysis over emerging sand bars: Flume-scale experiments

MA Khan, N Sharma, GFC Lama, M Hasan, R Garg… - Water, 2022 - mdpi.com
The many hydrodynamic implications associated with the geomorphological evolution of
braided rivers are still not profoundly examined in both experimental and numerical …

Genuine compressibility effects in wall-bounded turbulence

M Yu, CX Xu, S Pirozzoli - Physical Review Fluids, 2019 - APS
Compressible wall-bounded turbulence is generally assumed to be devoid of genuine
compressibility effects, meaning that the effect of finite fluid dilatation is regarded as “small,” …

Acoustic, hydrodynamic and thermal modes in a supersonic cold jet

S Unnikrishnan, DV Gaitonde - Journal of Fluid Mechanics, 2016 - cambridge.org
Large-eddy simulation data for a Mach 1.3 round jet are decomposed into acoustic,
hydrodynamic and thermal components using Doak's momentum potential theory. The …