A General Model for the Helical Structure of Geophysical Flows in Channel Bends
Sign Up to like & getrecommendations! Published in 2017 at "Geophysical Research Letters"
DOI: 10.1002/2017gl075721
Abstract: Meandering channels formed by geophysical flows (e.g. rivers and seafloor turbidity currents) include the most extensive sediment transport systems on Earth. Previous measurements from rivers show how helical flow at meander bends plays a key… read more here.
Keywords: turbidity currents; helical structure; helical flow; geophysical flows ... See more keywords
Flow structure of unconfined turbidity currents interacting with an obstacle
Sign Up to like & getrecommendations! Published in 2018 at "Environmental Fluid Mechanics"
DOI: 10.1007/s10652-018-9631-7
Abstract: Driven by a growing importance to engineered structures, investigating the flow characteristics of turbidity currents interacting with a basal obstruction has become popular over the last three decades. However, research has focused on confined studies… read more here.
Keywords: turbidity currents; obstacle; structure unconfined; turbidity ... See more keywords
Turbidity currents propagating down a slope into a stratified saline ambient fluid
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Fluid Mechanics"
DOI: 10.1007/s10652-019-09675-z
Abstract: Results are presented from highly resolved three-dimensional simulations of turbidity currents down a shallow slope into a stratified saline ambient, for various stratifications and particle settling velocity configurations. The front velocity is computed and the… read more here.
Keywords: slope stratified; fluid; ambient fluid; turbidity currents ... See more keywords
What determines the downstream evolution of turbidity currents?
Sign Up to like & getrecommendations! Published in 2020 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2019.116023
Abstract: Abstract Seabed sediment flows called turbidity currents form some of the largest sediment accumulations, deepest canyons and longest channel systems on Earth. Only rivers transport comparable sediment volumes over such large areas; but there are… read more here.
Keywords: turbidity currents; evolution turbidity; downstream evolution; turbidity ... See more keywords
Preconditioning by sediment accumulation can produce powerful turbidity currents without major external triggers
Sign Up to like & getrecommendations! Published in 2021 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2021.116845
Abstract: Abstract Turbidity currents dominate sediment transfer into the deep ocean, and can damage critical seabed infrastructure. It is commonly inferred that powerful turbidity currents are triggered by major external events, such as storms, river floods,… read more here.
Keywords: turbidity currents; powerful turbidity; major external; external triggers ... See more keywords
Quasi-stationary flow structure in turbidity currents
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Sediment Research"
DOI: 10.1016/j.ijsrc.2020.04.003
Abstract: Abstract A turbidity current is a particle-laden current driven by density differences due to suspended sediment particles. Turbidity currents can transport large amounts of sediment down slopes over great distances, and play a significant role… read more here.
Keywords: turbidity currents; quasi stationary; turbidity; turbidity current ... See more keywords
Sedimentary characteristics and model of gravity flows in the eocene Liushagang Formation in Weixi'nan depression, South China Sea
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2020.107082
Abstract: Abstract Gravity flows have been well investigated in deep-marine settings but less so in deep-lacustrine environments. To further understand the sedimentary characteristics and processes of gravity flows in a lacustrine rift basin, sublacustrine fans in… read more here.
Keywords: gravity; turbidity currents; gravity flows; density turbidity ... See more keywords
Large‐Scale Experiments on Breaching Flow Slides and the Associated Turbidity Current
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geophysical Research"
DOI: 10.1029/2020jf005582
Abstract: Breaching flow slides are accompanied by the generation of turbidity currents. Measurements of these currents are critical for understanding the interaction between the turbidity current and the slope surface, as well as for the validation… read more here.
Keywords: flow slides; large scale; turbidity currents; turbidity ... See more keywords
Large eddy simulation of turbidity currents in a narrow channel with different obstacle configurations
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-68830-5
Abstract: Turbidity currents are frequently observed in natural and man-made environments, with the potential of adversely impacting the performance and functionality of hydraulic structures through sedimentation and reduction in storage capacity and an increased erosion. Construction… read more here.
Keywords: large eddy; turbidity currents; obstacle; currents narrow ... See more keywords
Influence of Operational Timing on the Efficiency of Venting Turbidity Currents
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Hydraulic Engineering"
DOI: 10.1061/(asce)hy.1943-7900.0001508
Abstract: AbstractReservoir sedimentation is gaining growing attention as dams are aging, due to economic and environmental consequences. Venting of turbidity currents is one of many sediment management tech... read more here.
Keywords: turbidity currents; venting turbidity; operational timing; timing efficiency ... See more keywords
Storm‐induced turbidity currents on a sediment‐starved shelf: Insight from direct monitoring and repeat seabed mapping of upslope migrating bedforms
Sign Up to like & getrecommendations! Published in 2019 at "Sedimentology"
DOI: 10.1111/sed.12673
Abstract: The monitoring of turbidity currents enables accurate internal structure and timing of these flows to be understood. Without monitoring, triggers of turbidity currents often remain hypothetical and are inferred from sedimentary structures of deposits and… read more here.
Keywords: repeat seabed; turbidity; upslope; shelf ... See more keywords