23 citations · 139 across the 12 of their papers we have counts for
12 papers
Shear thinning of non-Brownian suspensions and its variation at different ambient conditions
Yuan Lin, Peiwen Lin, Ying Wang +4
Immiscible contaminants are commonly involved in naturally occurring suspensions. The resulting variations of their flow behavior has rarely been evaluated. Here, we investigate th…
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…
Large Effects of Particle Size Heterogeneity on Dynamic Saltation Threshold
Wei Zhu, Xinghui Huo, Jie Zhang +4
Reliably predicting the geomorphology and climate of planetary bodies requires knowledge of the dynamic threshold wind shear velocity below which saltation transport ceases. Here w…
Near-resonance tidal evolution of the Earth-Moon system influenced by orbital-scale climate change
Nan Wang, Zhi-Guo He
We build a conceptual coupled model of the climate and tidal evolution of the Earth-Moon system to find the influence of the former on the latter. An energy balance model is applie…
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…
An optimized dispersion-relation-preserving combined compact difference scheme to solve advection equations
Ching-Hao Yu, Dan Wang, Zhiguo He +1
In this study, we first present an improved version of the classical sixth-order combined compact difference (CCD6) scheme to enhance the convective stability of advection equation…
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…