Entrainment of bed material by Earth‐surface mass flows: Review and reformulation of depth‐integrated theory

RM Iverson, C Ouyang - Reviews of geophysics, 2015 - Wiley Online Library
Earth‐surface mass flows such as debris flows, rock avalanches, and dam‐break floods can
grow greatly in size and destructive potential by entraining bed material they encounter …

Bedload transport: a walk between randomness and determinism. Part 1. The state of the art

C Ancey - Journal of Hydraulic Research, 2020 - Taylor & Francis
This paper outlines the various approaches used to calculate bedload transport. As bedload
transport exhibits considerable spatial and temporal variations, computing the bedload …

Onset of sediment transport is a continuous transition driven by fluid shear and granular creep

M Houssais, CP Ortiz, DJ Durian… - Nature communications, 2015 - nature.com
Fluid-sheared granular transport sculpts landscapes and undermines infrastructure, yet
predicting the onset of sediment transport remains notoriously unreliable. For almost a …

Viewing Earth's surface as a soft-matter landscape

DJ Jerolmack, KE Daniels - Nature Reviews Physics, 2019 - nature.com
Earth's surface is composed of a staggering diversity of particulate–fluid mixtures: dry to wet,
dilute to dense, colloidal to granular and attractive to repulsive particles. This material variety …

SedFoam-2.0: a 3-D two-phase flow numerical model for sediment transport

J Chauchat, Z Cheng, T Nagel… - Geoscientific Model …, 2017 - gmd.copernicus.org
In this paper, a three-dimensional two-phase flow solver, SedFoam-2.0, is presented for
sediment transport applications. The solver is extended from twoPhaseEulerFoam available …

River-bed armouring as a granular segregation phenomenon

B Ferdowsi, CP Ortiz, M Houssais… - Nature …, 2017 - nature.com
River bed-load transport is a kind of dense granular flow, and such flows are known to
segregate grains. While gravel-river beds typically have an “armoured” layer of coarse …

A collision model for grain-resolving simulations of flows over dense, mobile, polydisperse granular sediment beds

E Biegert, B Vowinckel, E Meiburg - Journal of Computational Physics, 2017 - Elsevier
We present a collision model for phase-resolved Direct Numerical Simulations of sediment
transport that couple the fluid and particles by the Immersed Boundary Method. Typically, a …

Multi-dimensional rheology-based two-phase model for sediment transport and applications to sheet flow and pipeline scour

CH Lee, YM Low, YM Chiew - Physics of Fluids, 2016 - pubs.aip.org
Sediment transport is fundamentally a two-phase phenomenon involving fluid and
sediments; however, many existing numerical models are one-phase approaches, which are …

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 …

Investigation of sheet-flow processes based on novel acoustic high-resolution velocity and concentration measurements

T Revil-Baudard, J Chauchat, D Hurther… - Journal of Fluid …, 2015 - cambridge.org
A new dataset of uniform and steady sheet-flow experiments is presented in this paper. An
acoustic concentration and velocity profiler (ACVP) is used to measure time-resolved …