Large and very large scale motions in open-channel flows over rough bed in the presence and absence of a mixing layer
B Cerino, A Zampiron, S Proust, C Berni… - Environmental Fluid …, 2024 - Springer
This study examines shallow uniform flow and spanwise-sheared flow behind a vertical
splitter plate over a uniformly rough bed. The primary objective is to assess the presence of …
splitter plate over a uniformly rough bed. The primary objective is to assess the presence of …
Characteristics of very large-scale motions in rough-bed open-channel flows
Y Shen, S Yang, J Liu - Water, 2023 - mdpi.com
Rough-bed open-channel flows (OCFs) are ubiquitous in rivers and canals. However, the
scaling and energy contents of very-large-scale motions (VLSMs) in such flows remain …
scaling and energy contents of very-large-scale motions (VLSMs) in such flows remain …
Large-scale coherent flow structures in rough-bed open-channel flow observed in fluctuations of three-dimensional velocity, skin friction and bed pressure
F Bagherimiyab, U Lemmin - Journal of Hydraulic Research, 2018 - Taylor & Francis
The dynamics of large-scale coherent structures (LSCS) are investigated in a rough-bed
flow over the whole water column and longitudinal and transverse turbulent fluxes of …
flow over the whole water column and longitudinal and transverse turbulent fluxes of …
Very-large-scale motions in rough-bed open-channel flow
Long-duration particle image velocimetry measurements in rough-bed open-channel flows
(OCFs) reveal that the pre-multiplied spectra of the streamwise velocity have a bimodal …
(OCFs) reveal that the pre-multiplied spectra of the streamwise velocity have a bimodal …
[PDF][PDF] Large and very large scale motions in roughbed open-channel flow
Long duration PIV measurements in rough-bed (glass beads) open-channel flow (OCF)
reveal that the pre-multiplied spectra of the streamwise velocity has a bimodal distribution …
reveal that the pre-multiplied spectra of the streamwise velocity has a bimodal distribution …
Lateral bed-roughness variation in shallow open-channel flow with very low submergence
Quantifying turbulent fluxes and secondary structures in shallow channel flows is important
for predicting momentum and mass transfer in rivers as well as channel capacity and …
for predicting momentum and mass transfer in rivers as well as channel capacity and …
Characteristics of large-scale coherent structures on irregularly arranged rough-bed open-channel flows
Y Wang, P Zhang, S Yang, C Hu, J Jin, R Zhang - Water, 2023 - mdpi.com
Large-scale coherent structures (LSCSs) in rough-bed open-channel flow (OCF) are
significant in turbulence research. A recent breakthrough is the bimodal feature of LSCSs on …
significant in turbulence research. A recent breakthrough is the bimodal feature of LSCSs on …
On the scaling of large-scale structures in smooth-bed turbulent open-channel flows
This paper investigates the existence and scaling of the so-called large-scale and very-large-
scale motions (LSMs and VLSMs) in non-uniform turbulent open-channel flows developing …
scale motions (LSMs and VLSMs) in non-uniform turbulent open-channel flows developing …
Response of open-channel flow to a sudden change from smooth to rough bed
The turbulence characteristics in open-channel flow owing to a sudden change from smooth
(upstream) to rough (downstream) bed are investigated experimentally using a Particle …
(upstream) to rough (downstream) bed are investigated experimentally using a Particle …
An experimental investigation of turbulent free-surface flows over a steep permeable bed
G Rousseau, C Ancey - Journal of Fluid Mechanics, 2022 - cambridge.org
Steep streams involve shallow, supercritical turbulent flows over a permeable bed made up
of coarse particles. They usually exhibit higher flow resistance and stronger mass and …
of coarse particles. They usually exhibit higher flow resistance and stronger mass and …