23 citations · 126 across the 9 of their papers we have counts for
9 papers
Turbidity currents propagating down an inclined slope: particle auto-suspension
Jiafeng Xie, Peng Hu, Chenlin Zhu +2
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…
Fluid-particle interaction regimes during the evolution of turbidity currents from a coupled LES/DEM model
Jiafeng Xie, Peng Hu, Thomas Pähtz +2
In this paper, fluid-particle interactions in lock-exchange turbidity currents (TCs) over a flat bed are investigated using a model combining LES and DEM (Large-Eddy Simulation and…
Unified model of sediment transport threshold and rate across weak and intense subaqueous bedload, windblown sand, and windblown snow
Thomas Pähtz, Yonghui Liu, Yuezhang Xia +3
Nonsuspended sediment transport (NST) refers to the sediment transport regime in which the flow turbulence is unable to support the weight of transported grains. It occurs in fluvi…
Front Velocity and Front Location of Lock-exchange Gravity Currents Descending a Slope in a Linearly Stratified Environment
Liang Zhao, Zhiguo He, Yafei Lv +3
Gravity currents descending a slope in a linearly stratified environment can be frequently encountered in nature. However, few studies have quantitatively investigated the evolutio…
Hydrodynamics of Lock-exchange Turbidity Currents down a Slope Based on Direct Numerical Simulation
Zhiguo He, Liang Zhao, Peng Hu +2
Please refer to the Abstract part in the paper.
Limitations of empirical sediment transport formulas for shallow water and their consequences for swash zone modelling
Wei Li, Peng Hu, Thomas Pähtz +2
Volumetric sediment concentrations computed by phase-resolving swash morphodynamic models are shown to exceed unity minus porosity (i.e. the maximal physically possible concentrati…
Modeling of Breaching Due to Overtopping Flow and Waves Based on Coupled Flow and Sediment Transport
Zhiguo He, Peng Hu, Liang Zhao +2
Breaching of earthen or sandy dams/dunes by overtopping flow and waves is a complicated process with strong, unsteady flow, high sediment transport, and rapid bed changes in which…
Is it appropriate to model turbidity currents with the three-equation model?
Peng Hu, Thomas Pähtz, Zhiguo He
The three-equation model (TEM) was developed in the 1980s to model turbidity currents (TCs) and has been widely used ever since. However, its physical justification was questioned…
Well-balanced and flexible morphological modeling of swash hydrodynamics and sediment transport
Peng Hu, Wei Li, Zhiguo He +2
Existing numerical models of the swash zone are relatively inflexible in dealing with sediment transport due to a high dependence of the deployed numerical schemes on empirical sed…