Vertical sorting process in oscillating water tank using DEM-MPS coupling model

Tazaki, Takumi; Harada, Eiji; Gotoh, Hitoshi

doi:10.1016/j.coastaleng.2020.103765

Cited by 15 publications

(3 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The fine particles are stirred up to relatively high levels due to stronger mobility and smaller settling velocity, whereas the coarse particles are concentrated near the initial bed (Hassan & Ribberink, 2005b). These phenomena are also reproduced by some turbulence closure models and two‐phase Eulerian–Lagrangian simulations (e.g., Z. Li & Davies, 2001; Tazaki et al., 2021). The model reflects the fining above the initial bed ( z > 0) and the coarsing below the initial bed ( z < 0) in the wave period.…”

Section: Resultsmentioning

confidence: 67%

“…These phenomena are also reproduced by some turbulence closure models and two-phase Eulerian-Lagrangian simulations (e.g., Z. Li & Davies, 2001;Tazaki et al, 2021). The model reflects the fining above the initial bed (z > 0) and the coarsing below the initial bed (z < 0) in the wave period.…”

Section: Gradation Variationmentioning

confidence: 70%

“…Correspondingly, the net flow is reversed offshore at the upper wave boundary layer and agrees with the experimental and numerical results over fixed beds (van der A et al., 2011; Kranenburg et al., 2012). Second, the fractional interaction (gradation effects) is dynamic (Rafati et al., 2020; Tazaki et al., 2021) and the correction factor ( η i ) should also vary both temporally and spatially. Nevertheless, it is still difficult to represent the dynamic gradation effects for different size fractions in oscillatory sheet flow and a constant η i under the initial stationary bed is applied to represent the gradation effects (van Rijn, 2007).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Analytical Model for Graded Sediment Transport in Velocity‐ and Acceleration‐Skewed Oscillatory Sheet Flow

Chen

2023

JGR Oceans

View full text Add to dashboard Cite

At high sediment transport intensities, the oscillatory ripple loses its height and the bed becomes flat, and sediment motion then occurs as a sheet within a few centimeters near the bottom (Hassan & Ribberink, 2010). Sheet flow study is of considerable importance to coastal processes, as it can cause substantial morphological evolutions during severe hydrodynamic conditions over a short time scale (Tan & Yuan, 2021). Sheet flow transport in the coastal area is mainly influenced by the intensity of hydrodynamic forcing and the sediment properties (i.e., size, density, and shape) (Durafour et al., 2015). The heterogeneity of sediment properties is important to sheet flow transport (de Meijer et al., 2002), and this paper only focuses on the heterogeneity of sediment size. Many sediment beds have wide-size distributions, and the distributions may not be lognormal and tend to be negatively or positively skewed (Mohtar et al., 2016). Non-uniform sediments are also generally found in nearshore projects that involve the mixing of multiple types of sediment (e.g., beach nourishment and dredged material disposal) . The non-uniformity of grain size plays a very important role in the sediment movement caused by wave motion (Holland & Elmore, 2008). Massive sediment transport occurs in the surf zone and the swash zone, where graded sediment bed moves primarily under the sheet flow regime (Harada et al., 2015;van der Zanden et al., 2019). Hence, ascertaining the mechanism of oscillatory sheet flow for graded sediment is essential in coastal sediment dynamics.

show abstract

Section: Resultsmentioning

confidence: 67%

Section: Gradation Variationmentioning

confidence: 70%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Analytical Model for Graded Sediment Transport in Velocity‐ and Acceleration‐Skewed Oscillatory Sheet Flow

Chen

2023

JGR Oceans

View full text Add to dashboard Cite

show abstract

Overview of Moving Particle Semi-implicit Techniques for Hydrodynamic Problems in Ocean Engineering

Xie

Zhao

Wan

2022

J. Marine. Sci. Appl.

View full text Add to dashboard Cite

With the significant development of computer hardware, many advanced numerical techniques have been proposed to investigate complex hydrodynamic problems. This article aims to provide a detailed review of moving particle semi-implicit (MPS) techniques and their application in ocean and coastal engineering. The achievements of the MPS method in stability and accuracy, boundary conditions, and acceleration techniques are discussed. The applications of the MPS method, which are classified into two main categories, namely, multiphase flows and fluid-structure interactions, are introduced. Finally, the prospects and conclusions are highlighted. The MPS method has the potential to solve practical problems.

show abstract

Fully implicit discrete element method for granular column collapse

Ikari

Gotoh²

2022

Comp. Part. Mech.

View full text Add to dashboard Cite

Vertical sorting process in oscillating water tank using DEM-MPS coupling model

Cited by 15 publications

References 37 publications

Analytical Model for Graded Sediment Transport in Velocity‐ and Acceleration‐Skewed Oscillatory Sheet Flow

Analytical Model for Graded Sediment Transport in Velocity‐ and Acceleration‐Skewed Oscillatory Sheet Flow

Overview of Moving Particle Semi-implicit Techniques for Hydrodynamic Problems in Ocean Engineering

Fully implicit discrete element method for granular column collapse

Contact Info

Product

Resources

About