Article
Engineering, Civil
Jose Carlos Pintado-Patino, Jack A. Puleo, Douglas Krafft, Alec Torres-Freyermuth
Summary: The experimental study provides detailed measurements of swash zone hydrodynamics, sediment transport flux, and bed changes over a movable sand bed with a steep slope. It shows that sheet flow sediment dominates over suspended load during sediment transport, and the relative contribution of sheet flow decreases over time and space. The results also indicate close agreement between different approaches for estimating sediment transport in the swash zone.
COASTAL ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
M. Pontiki, J. A. Puleo, H. Bond, M. Wengrove, R. A. Feagin, T. J. Hsu, T. Huff
Summary: This study explores the response of a near-prototype berm to scaled storm conditions and finds that berm overtopping and offshore sediment transport are key processes causing berm erosion. Additionally, the formation of offshore sand bars attenuates subsequent wave energy and inhibits inundation of the backshore. Sediment transport in the swash zone is predominantly influenced by infragravity motions, while sediment transport in the inner-sur zone is relatively more influenced by incident-band motions.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Geosciences, Multidisciplinary
M. Pontiki, J. A. Puleo, H. Bond, M. Wengrove, R. A. Feagin, T. -j. Hsu, T. Huff
Summary: This study investigates the response of sand berms to storm conditions. Results indicate that overtopping and offshore sediment transport are key processes causing berm erosion. The formation of offshore sand bars attenuates subsequent wave energy and inhibits inundation of the backshore.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Engineering, Marine
Ioannis Kazakis, Theophanis V. Karambas
Summary: This study numerically investigates the 3D hydrodynamic processes in coastal zones, such as wave breaking, wave-induced currents, and sediment transport, using the multiphase, interFoam solver of OpenFOAM. The numerical scheme incorporates the initial conditions of wave propagation and absorption using the waves2Foam wave library. Turbulence closure is handled with a buoyancy modified k-omega SST model. A transport-rate formula for sediment transport is implemented to predict the sediment transport rate due to waves and currents. The results are compared with experimental data and semi-empirical expressions for wave height, longshore current, turbulence kinetic energy, and sediment transport.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Marine
Joost W. M. Kranenborg, Geert H. P. Campmans, Niels G. Jacobsen, Jebbe J. van der Werf, Ad J. H. M. Reniers, Suzanne J. M. H. Hulscher
Summary: In this study, a fully coupled 2DV morphodynamic model implemented in OpenFOAM was presented for simulating swash-zone morphodynamics of sandy beaches. The model performance was evaluated by comparing with field-scale measurements of solitary waves, showing reasonable agreement in terms of hydrodynamics and sediment transport volumes. The model demonstrated the potential of depth-resolving models in providing more insight into morphodynamic processes in the swash zone.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Marine
Tristan B. Guest, Alex E. Hay
Summary: This study utilized aeroacoustic and optical remote sensing techniques to observe the morpho-sedimentary dynamics in the swash zone of a mixed sand-gravel beach. The data showed a correlation between increases in bed level and mean grain size, as well as finer-scale structures and the migration of coarse-grained material. Close-range remote sensing techniques provided valuable insights into the dynamics of cobble-sized and sand-sized particles in the swash zone.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Civil
Takumi Tazaki, Eiji Harada, Hitoshi Gotoh
Summary: This study investigated the size sorting process in the swash zone through experiments and numerical simulations, revealing that vertical sorting in the zone leads to bed surface armoring and horizontal velocity transition. The inertia of the water surface gradient induced oscillations of sediment elements, causing frequent collisions and contacts among the elements.
COASTAL ENGINEERING
(2021)
Review
Geosciences, Multidisciplinary
W. Chen, J. J. van der Werf, S. J. M. H. Hulscher
Summary: The swash zone plays a crucial role in nearshore hydrodynamics and morphodynamics. Proper prediction of swash zone sand transport is important for evaluating beach management scenarios. This paper describes the advances in understanding the physical processes and factors influencing sand transport in the swash zone and discusses practical models for predicting long-term beach evolution.
EARTH-SCIENCE REVIEWS
(2023)
Article
Environmental Sciences
Yuan Xu, Heidi Nepf
Summary: The study found that the morphology of real plants can affect the vertical distribution of suspended sediment, thus altering the classic model for sediment concentration in river beds. The dense part of Typha latifolia leaves had a relatively uniform suspended sediment concentration, while the upper region with dispersed leaves had decreasing concentration with height.
WATER RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
G. Calvani, C. Carbonari, L. Solari
Summary: Vegetation plays a crucial role in riverine environments by influencing hydrodynamics and morphodynamics. This study derived analytical formulations to predict the thresholds for vegetation colonization based on flow velocity and Froude number, considering submergence conditions. The results highlight the importance of vegetation characteristics and flow regime in determining the thresholds, and provide insights for river restoration projects and understanding bio-morphological changes.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
R. J. McCarroll, N. G. Valiente, M. Wiggins, T. Scott, G. Masselink
Summary: To understand how coastlines change over time in different environments, it is important to have records of beach morphologic change and concurrent hydrodynamic forcing. This study provides data from 2006 to 2021 for two contrasting macrotidal environments in southwest England, including a cross-shore dominated sandy beach and a longshore-dominated reflective gravel beach. The data includes beach profile surveys, topo-bathymetries, as well as observed and modeled wave and water levels. These data serve as a valuable resource for modeling coastal behavior not covered by other available datasets.
Article
Engineering, Civil
Xinyu Hu, Xin Chen
Summary: This research proposes a fractional formula for graded sediment transport in wave-driven sheet flow, considering phase lag, acceleration effect, and asymmetric boundary layer development. The formula uses common parameters for each fraction and introduces a fractional pseudo erosion depth to determine sediment amount and concentration. Two approaches (MFA and GCA) are applied to estimate total sediment transport rate, and the formula is verified with data. The formula efficiently handles graded sediment transport and reproduces onshore-offshore-directed transport.
COASTAL ENGINEERING
(2023)
Article
Oceanography
Giulia Mancini, Riccardo Briganti, Robert McCall, Nicholas Dodd, Fangfang Zhu
Summary: This study aims to improve the numerical modeling of intra-wave sediment transport on sandy beaches by implementing a new transport equation in a wave-resolving hydro-morphodynamic framework. Experimental results show better performance in simulating single waves compared to wave trains, indicating the need for further research in capturing sediment transport and bed evolution in the surf zone.
Article
Environmental Sciences
Andrew J. Moodie, Jeffrey A. Nittrouer, Hongbo Ma, Brandee N. Carlson, Yuanjian Wang, Michael P. Lamb, Gary Parker
Summary: This study demonstrates that sediment concentration may influence the magnitude and pattern of vertical density stratification through sampling and measurement under different flow conditions in the lower reach of the Yellow River. The importance lies in the understanding of the vertical density stratification phenomenon in natural river flows, which can improve sediment transport models and provide guidance for ecological environmental management and flood protection measures in rivers.
WATER RESOURCES RESEARCH
(2022)
Article
Mathematics, Applied
Sushama Baag, Satyaranjan Mishra, Kottakkaran Sooppy Nisar, Wasim Jamshed
Summary: This study investigates the enhancement of thermophysical properties in the flow of radiative micropolar nanofluid past a permeable moving surface using the Koo-Kleinsteuer-Li model and the Homotopy Perturbation Method (HPM). The effects of various parameters on the flow phenomena are presented graphically and tabularly. The findings reveal that an increase in the volume fraction of particles leads to a retardation in the linear velocity profile, suction slows down the linear velocity profile, and injection has a counterproductive effect. Furthermore, an increase in thermal radiation increases the fluid temperature and thickness of the thermal layer.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Oceanography
Thijs Lanckriet, Jack A. Puleo
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2015)
Article
Engineering, Civil
J. A. Brinkkemper, T. Lanckriet, F. Grasso, J. A. Puleo, B. G. Ruessink
COASTAL ENGINEERING
(2016)
Article
Engineering, Civil
Thijs Lanckriet, Davy Depreiter, Gijsbert van Holland
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2017)
Article
Engineering, Civil
Thijs Lanckriet, Davy Depreiter, Gijsbert van Holland
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2017)
Article
Engineering, Civil
Jack A. Puleo, Thijs Lanckriet, Ping Wang
COASTAL ENGINEERING
(2012)
Article
Engineering, Civil
Jack A. Puleo, Chris Blenkinsopp, Daniel Conley, Gerd Masselink, Ian L. Turner, Paul Russell, Daniel Buscombe, Daniel Howe, Thijs Lanckriet, Robert McCall, Timothy Poate
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2014)
Article
Engineering, Civil
Thijs Lanckriet, Jack A. Puleo, Gerd Masselink, Ian L. Turner, Daniel Conley, Chris Blenkinsopp, Paul Russell
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2014)
Article
Oceanography
Thijs Lanckriet, Jack A. Puleo
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2013)
Article
Environmental Sciences
Carlos Munoz-Royo, Thomas Peacock, Matthew H. Alford, Jerome A. Smith, Arnaud Le Boyer, Chinmay S. Kulkarni, Pierre F. J. Lermusiaux, Patrick J. Haley, Chris Mirabito, Dayang Wang, E. Eric Adams, Raphael Ouillon, Alexander Breugem, Boudewijn Decrop, Thijs Lanckriet, Rohit B. Supekar, Andrew J. Rzeznik, Amy Gartman, Se-Jong Ju
Summary: The impact of deep-sea nodule mining midwater discharge plumes is influenced by various factors including environmentally acceptable threshold levels, discharged sediment quantity, and turbulent diffusivity in the Clarion Clipperton Fracture Zone, according to numerical modeling and direct experiments.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)