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 …

Yade documentation

V Smilauer, V Angelidakis, E Catalano, R Caulk… - arXiv preprint arXiv …, 2023 - arxiv.org
Yade is an extensible open-source framework for discrete numerical models, focused on the
Discrete Element Method. The computation parts are written in c++ using a flexible object …

Bedload transport: a walk between randomness and determinism. Part 2. Challenges and prospects

C Ancey - Journal of Hydraulic Research, 2020 - Taylor & Francis
By the late nineteenth century, the scientific study of bedload transport had emerged as an
offshoot of hydraulics and geomorphology. Since then, computing bedload transport rates …

Grain shape effects in bed load sediment transport

E Deal, JG Venditti, SJ Benavides, R Bradley, Q Zhang… - Nature, 2023 - nature.com
Bed load sediment transport, in which wind or water flowing over a bed of sediment causes
grains to roll or hop along the bed, is a critically important mechanism in contexts ranging …

Unification of aeolian and fluvial sediment transport rate from granular physics

T Pähtz, O Durán - Physical Review Letters, 2020 - APS
One of the physically least understood characteristics of geophysical transport of sediments
along sediment surfaces is the well-known experimental observation that the sediment …

Scaling behavior of bedload transport: what if Bagnold was right?

C Ancey, A Recking - Earth-Science Reviews, 2023 - Elsevier
There is a paradox in the relationship between bedload transport rates and flow variables:
laboratory and field studies have reported on how bedload transport rates depend on flow …

Scanning PIV of turbulent flows over and through rough porous beds using refractive index matching

G Rousseau, C Ancey - Experiments in Fluids, 2020 - Springer
This paper presents image velocimetry measurements on turbulent flows adjacent to a
permeable bed made of randomly packed glass particles. For measuring flow velocities …

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 …

Turbidity currents propagating down an inclined slope: particle auto-suspension

J Xie, P Hu, C Zhu, Z Yu, T Pähtz - Journal of Fluid Mechanics, 2023 - cambridge.org
The turbidity current (TC), a ubiquitous fluid–particle coupled phenomenon in the natural
environment and engineering, can transport over long distances on an inclined terrain due …

The cessation threshold of nonsuspended sediment transport across aeolian and fluvial environments

T Pähtz, O Durán - Journal of Geophysical Research: Earth …, 2018 - Wiley Online Library
Using particle‐scale simulations of nonsuspended sediment transport for a large range of
Newtonian fluids driving transport, including air and water, we determine the bulk transport …