Effects of Harbor Shape on the Induced Sedimentation; L-Type Basin

Kian, Rozita; Velioğlu, Deniz; Yalçıner, Ahmet Cevdet; Zaytsev, Andrey

doi:10.3390/jmse4030055

Cited by 10 publications

(4 citation statements)

References 5 publications

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“…Recently, many research attempts have been made with physical and numerical models to investigate sediment transport in harbor basins for the purpose of mitigating sedimentation issues [2,6,[16][17][18][19][20][21][22][23][24][25]. Physical modeling methodologies strive to incorporate diverse influences for assessing and determining harbors' sedimentation quantities.…”

Section: Introductionmentioning

confidence: 99%

Harbor Sedimentation Management Using Numerical Modeling and Exploratory Data Analysis

Elnabwy,

Elbeltagi,

El Banna

et al. 2024

Advances in Civil Engineering

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Sedimentation in the harbors’ basins is an environmental phenomenon that frequently disrupts safe shipping and necessitates costly dredging operations. The layout of harbors and the permeability of protective structures such as breakwaters influence sediment transport within harbor basins. Thus, through a multistep framework, this study investigates the sedimentation management issues for the Egyptian proposed Ezbet Elborg fishing harbor based on field measurements and a numerical morphodynamic coastal modeling system (CMS). First, field measurements were analyzed and evaluated for acquiring a full grasp of the research area’s bathymetry and hydrodynamics. Second, a two-dimensional (2D) numerical simulation CMS model was set up and calibrated against field measurements wherein the developed CMS model highly correlated with actual measurements by 97%. CMS results demonstrate that the predominant NNW wave with the formed longshore current on both the harbor’s sides affects sediment accumulation within the harbor’s basin. Third, 100 simulations for the proposed harbor including different structural modulation scenarios affecting the sedimentation issue were investigated via the calibrated CMS model. Finally, an exploratory data analysis (EDA) is performed via correlation matrix and ANOVA test for the CMS’s scenarios’ results to gain an in-depth view of the relation between the harbors’ layout and the structural characteristics with the sedimentation volumes. Results showed that breakwaters’ orientation affects sediment accumulation more than its length. Also, breakwater permeability and basin width are significantly affecting sediment accumulation. Ultimately, the current study makes a substantial contribution to integrated coastal structure management (ICSM) by helping coastal stakeholders to mitigate the negative impacts of the harbors’ sediment deposition aiming at sustaining both environmental and economic aspects.

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Section: Introductionmentioning

confidence: 99%

Harbor Sedimentation Management Using Numerical Modeling and Exploratory Data Analysis

Elnabwy,

Elbeltagi,

El Banna

et al. 2024

Advances in Civil Engineering

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“…Due to incoming tides and waves, sediment is generally formed in tidal estuary and wave dominated estuary on the landward side [20][21][22]. e flow direction and sediment entrainment in the coastal zone are mainly driven by the simultaneous action of swell and tide [23]. Sediment transport is mainly composed of bed sediment and suspended sediment [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

The Properties of the Tide Current and Sediment at a Port of Southern China

Shen

Xie²,

Song

2022

Advances in Materials Science and Engineering

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Environmental factors of projects in the sea area, such as tidal current characteristics and sediment transport patterns, play a decisive role in the safe operation of the harbor. Based on the observation data of tide level, tidal current, suspended sediment, and surface sediment in the Port of Shenquan, this paper focuses on the study of the characteristics of tidal current and sediment of projects in the sea area. According to the measured tide hydrograph, it can be concluded that the tide in the Port of Shenquan is irregular diurnal, and the flow of rising and falling tides is basically rectilinear. The velocity of the neap tide is higher than that of spring tide, which is mainly related to the strong winds and waves. The sand source is limited, and the sediment concentration in the water is very low. The hourly sediment concentration in each station fluctuates within a narrow range, independent of hourly velocity change. The sediment is coarse and fine, with a distribution pattern of coarse near shore, fine in deep water, coarse in East and West, and fine in the middle, and the sorting coefficient of sediment is medium to well.

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“…In the framework of coastal sediment transport, 3D models for the simulation of the hydrodynamic fields [3][4][5][6] require considerable computational time, due to the long-time scale of the sea bottom variations. For this reason, in the context of morphodynamic simulations, the hydrodynamic equations [7][8][9][10][11][12][13] and the suspended sediment concentration equation are usually depth averaged [14].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study over the Effects of a Designed Submerged Breakwater on the Coastal Sediment Transport in the Pescara Harbour (Italy)

Gallerano

Palleschi

Iele

2020

JMSE

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In 1997, in front of the Pescara Harbour (Italy), a detached breakwater was constructed. In the successive years, the sediment transport due to the combined action of waves and coastal currents, in the area between the detached breakwater and the entrance of the Pescara Harbour, produced an accumulation of about 40,000 m 3 of sediment per year. In this paper, the causes of the accretion of the bottom elevation in front of the Pescara Harbour entrance and the effects produced by the existing detached breakwater are investigated. The effects on the sediment transport of the introduction of a new submerged breakwater designed to protect the entrance of the harbour from sediment siltation are investigated. In particular, the ability of the designed submerged breakwater, located orthogonally to the longshore current, to intercept the aforementioned solid material and to significantly reduce the accretion of the bottom in the area in front of the harbour entrance, was numerically verified. Numerical simulations were carried out by means of a model of the bottom-change composed of two sub-models: a two-dimensional phase resolving model that is used to calculate the fluid dynamic variables changing inside the wave period and a second sediment transport sub-model to simulate the bottom changes, in which the suspended sediment concentration is calculated by the wave-averaged advection–diffusion equation. The equations of motion, in which the vector and tensor quantities are expressed in Cartesian components, are written in a generalised curvilinear coordinate system. The fully nonlinear Boussinesq equations are written in an integral form and used to simulate the velocity fields.

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Effects of Harbor Shape on the Induced Sedimentation; L-Type Basin

Cited by 10 publications

References 5 publications

Harbor Sedimentation Management Using Numerical Modeling and Exploratory Data Analysis

Harbor Sedimentation Management Using Numerical Modeling and Exploratory Data Analysis

The Properties of the Tide Current and Sediment at a Port of Southern China

Numerical Study over the Effects of a Designed Submerged Breakwater on the Coastal Sediment Transport in the Pescara Harbour (Italy)

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