An energy-efficient pathway to turbulent drag reduction
Simulations and experiments at low Reynolds numbers have suggested that skin-friction
drag generated by turbulent fluid flow over a surface can be decreased by oscillatory motion …
drag generated by turbulent fluid flow over a surface can be decreased by oscillatory motion …
Statistics and dynamics of coherent structures in compressible wall-bounded turbulence
M Yu, SW Dong, XX Yuan, CX Xu - Science China Physics, Mechanics & …, 2024 - Springer
Compressible wall-bounded turbulence is ubiquitously encountered in modern aerospace
and mechanical industries. In this review, we summarize the current state of the literature on …
and mechanical industries. In this review, we summarize the current state of the literature on …
Separating large-scale superposition and modulation in turbulent channels
The presence of very-large-scale motions in wall-bounded turbulent flows is commonly
associated with their footprint in the form of the superposition of the large scales at the wall …
associated with their footprint in the form of the superposition of the large scales at the wall …
[HTML][HTML] Direct numerical simulation of drag reduction by spanwise oscillating dielectric barrier discharge plasma force
DBD (dielectric barrier discharge) plasma actuators have in recent years become
increasingly attractive in studies of flow control due to their light structures and easy …
increasingly attractive in studies of flow control due to their light structures and easy …
On the structure of streamwise wall-shear stress fluctuations in turbulent channel flows
A growing body of studies in wall-bounded turbulence has shown that the generation of wall-
shear stress fluctuations is directly connected with outer-layer large-scale motions. In the …
shear stress fluctuations is directly connected with outer-layer large-scale motions. In the …
Large-to-small scale frequency modulation analysis in wall-bounded turbulence via visibility networks
Scale interaction is studied in wall-bounded turbulence by focusing on the frequency
modulation (FM) mechanism of the large scales on small-scale velocity fluctuations. Different …
modulation (FM) mechanism of the large scales on small-scale velocity fluctuations. Different …
Predictive models for near-wall velocity and temperature fluctuations in supersonic wall-bounded turbulence
M Yu, C Xu - Journal of Fluid Mechanics, 2022 - cambridge.org
Predictive models for near-wall velocity and temperature fluctuations in compressible wall-
bounded turbulence are developed in the present study based on the model proposed by …
bounded turbulence are developed in the present study based on the model proposed by …
A scaling improved inner–outer decomposition of near-wall turbulent motions
L Wang, R Hu, X Zheng - Physics of Fluids, 2021 - pubs.aip.org
Near-wall turbulent velocities in turbulent channel flows are decomposed into small-scale
and large-scale components at y+< 100 by improving the predictive inner–outer model of …
and large-scale components at y+< 100 by improving the predictive inner–outer model of …
Artificially thickened boundary layer turbulence due to trip wires of varying diameter
In this paper, we study the artificially thickened boundary layer flows downstream of the
trip** configuration that consists of a set of trip wires of varying diameters. Single-point hot …
trip** configuration that consists of a set of trip wires of varying diameters. Single-point hot …
Auto-encoder-assisted analysis of amplitude and wavelength modulation of near-wall turbulence by outer large-scale structures in channel flow at friction Reynolds …
This paper reports a novel methodology that allows the intensity of, and the underlying
mechanism for, the amplitude and length-scale modulation (amplification or attenuation) of …
mechanism for, the amplitude and length-scale modulation (amplification or attenuation) of …