Turbulence processes within turbidity currents

MG Wells, RM Dorrell - Annual Review of Fluid Mechanics, 2021 - annualreviews.org
Sediment-laden gravity currents, or turbidity currents, are density-driven flows that transport
vast quantities of particulate material across the floor of lakes and oceans. Turbidity currents …

[HTML][HTML] Control of ambient fluid on turbidity current evolution: Mechanisms, feedbacks and influencing factors

X Liu, J Sun, Y Lu, X Guo - Geosystems and Geoenvironment, 2023 - Elsevier
Turbidity currents are important ocean dynamic processes that influence sediment transport,
ocean engineering, and marine environments. As a turbidity current evolves, its macroscopic …

High‐resolution X‐ray fluorescence profiling of hybrid event beds: implications for sediment gravity flow behaviour and deposit structure

A Hussain, PDW Haughton, PM Shannon… - …, 2020 - Wiley Online Library
Hybrid event beds form when turbidity currents that transport or locally acquire significant
quantities of mud decelerate. The mud dampens turbulence driving flow transformations …

Stratal characteristic and depositional origin of two-part (Mud-poor overlain by mud-rich) and associated deep-water strata: Components in a lateral depositional …

J Ningthoujam, C Wearmouth… - Journal of …, 2022 - pubs.geoscienceworld.org
Deep-marine strata consisting of a sandy basal part overlain sharply by a muddier and mud-
clast-rich upper part are increasingly being recognized in the deep-marine sedimentary …

Particle size distribution controls the threshold between net sediment erosion and deposition in suspended load dominated flows

RM Dorrell, LA Amy, J Peakall… - Geophysical Research …, 2018 - Wiley Online Library
The central problem of describing most environmental and industrial flows is predicting
when material is entrained into, or deposited from, suspension. The threshold between …

Characterization of multiple hindered settling regimes in aggregated mineral suspensions

M Johnson, J Peakall, M Fairweather… - Industrial & …, 2016 - ACS Publications
Aqueous suspensions of magnesium hydroxide are shown to exhibit low ζ-potential
behavior and highly complex settling dynamics. Two distinct regimes of hindered settling …

Consolidation of freshly deposited cohesive and noncohesive sediment: particle-resolved simulations

B Vowinckel, E Biegert, P Luzzatto-Fegiz, E Meiburg - Physical Review Fluids, 2019 - APS
We analyze the consolidation of freshly deposited cohesive and noncohesive sediment by
means of particle-resolved direct Navier-Stokes simulations based on the immersed …

Equilibrium sediment transport by dilute turbidity currents: Comparison of competence‐based and capacity‐based models

L Amy, R Dorrell - Sedimentology, 2022 - Wiley Online Library
Equilibrium sediment transport is the condition of zero net entrainment and deposition by
sediment‐transporting flow (ie grade or regime). Here criteria for equilibrium sediment …

On the hindered settling of sand-mud suspensions

J Spearman, AJ Manning - Ocean Dynamics, 2017 - Springer
Hindered settling, the process by which the settling of sediment particles becomes impeded
due to the proximity of other sediment particles, can be an important process for the coastal …

The structure of the deposit produced by sedimentation of polydisperse suspensions

RM Dorrell, AJ Hogg, EJ Sumner… - Journal of Geophysical …, 2011 - Wiley Online Library
To interpret the deposits from particle‐laden flows it is necessary to understand particle
settling at their base. In this paper a quantitative model is developed that not only captures …