The physics of sediment transport initiation, cessation, and entrainment across aeolian and fluvial environments

T Pähtz, AH Clark, M Valyrakis… - Reviews of …, 2020 - Wiley Online Library
Predicting the morphodynamics of sedimentary landscapes due to fluvial and aeolian flows
requires answering the following questions: Is the flow strong enough to initiate sediment …

Laser-induced plume investigated by finite element modelling and scaling of particle entrainment in laser powder bed fusion

YA Mayi, M Dal, P Peyre, M Bellet… - Journal of Physics D …, 2019 - iopscience.iop.org
Although metal vaporisation has been observed in several laser processes such as drilling
or welding, vapour plume expansion and its induced side effects are not fully understood …

Advances in modeling of bed particle entrainment sheared by turbulent flow

S Dey, SZ Ali - Physics of Fluids, 2018 - pubs.aip.org
Bed particle entrainment by turbulent wall-shear flow is a key topic of interest in
hydrodynamics because it plays a major role to govern the planetary morphodynamics. In …

Direct numerical simulation of sediment entrainment in turbulent channel flow

C Ji, A Munjiza, E Avital, J Ma, JJR Williams - Physics of Fluids, 2013 - pubs.aip.org
In this paper, the entrainment and movement of coarse particles on the bed of an open
channel is numerically investigated. Rather than model the sediment transport using a …

Near-bed turbulence characteristics at the entrainment threshold of sediment beds

S Dey, S Sarkar, L Solari - Journal of Hydraulic Engineering, 2011 - ascelibrary.org
This experimental study is devoted to quantification of the near-bed turbulence
characteristics at an entrainment threshold of noncohesive sediments. Near the bed, the …

The incipient motion safety factor of sediment considers the coupling between the surface and subsurface flows under multi-motion modes

D Li, S Zhang, Z Ni, Z Zhai - Journal of Hydrology, 2024 - Elsevier
The incipient movement of sediment particles in natural rivers under the action of water
scour has remained a key issue in river sediment movement research. In this study, we …

Bed sediment entrainment by streamflow: State of the science

S Dey, SZ Ali - Sedimentology, 2019 - Wiley Online Library
In fluvial sedimentology, bed sediment entrainment by streamflow has a decisive role in
controlling several fluvial processes. Owing to its huge practical importance, the subject has …

Impact of the construction of cascade reservoirs on suspended sediment peak transport variation during flood events in the Three Gorges Reservoir

J Ren, M Zhao, W Zhang, Q Xu, J Yuan, B Dong - Catena, 2020 - Elsevier
Peak sediment transport during flood events is very important to the sustainability of the
Three Gorges Reservoir (TGR), and thus, in-depth research on peak sediment transport …

Flow structures and hydrodynamic force during sediment entrainment

A Dwivedi, BW Melville, AY Shamseldin… - Water resources …, 2011 - Wiley Online Library
An experimental investigation of the role of coherent structures and their effect on
hydrodynamic forces responsible for inception of sediment motion has been carried out …

The influence of turbulent bursting on sediment resuspension under unidirectional currents

S Salim, C Pattiaratchi, R Tinoco, G Coco… - Earth Surface …, 2017 - esurf.copernicus.org
Laboratory experiments were conducted in an open channel flume with a flat sandy bed to
examine the role of turbulence on sediment resuspension. An acoustic Doppler velocimeter …