January 2025
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112 Reads
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4 Citations
Coastal Engineering
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January 2025
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112 Reads
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4 Citations
Coastal Engineering
December 2024
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3 Reads
Ocean Engineering
December 2024
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22 Reads
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4 Citations
Computers & Mathematics with Applications
December 2024
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28 Reads
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1 Citation
Applied Ocean Research
October 2024
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10 Reads
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2 Citations
Ocean Engineering
August 2024
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21 Reads
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1 Citation
Offshore floating photovoltaic (OFPV) platforms have emerged as a new development trend. However, conventional floating photovoltaic platforms designed for inland water areas are not suitable for use directly in ocean environments. Hence, an OFPV platform incorporating three types of mooring systems is proposed. These mooring systems employ various combinations of mooring lines, including all chains, chain-polyester ropes-chain, and chain-nylon ropes-chain, respectively. Dynamic response analysis of the three mooring systems for the offshore floating photovoltaic platform is conducted. The results indicate that the mooring system with nylon ropes shows the lowest tension and the largest displacements of the OFPV platform. However, the mooring systems with all chains show the largest tension under the same environmental load. In addition, the dynamic response of mooring systems with one-line failure is investigated. Results show that the floating platform undergoes significant displacement motion once a mooring line fails. Furthermore, the tension distribution of the remaining mooring lines becomes uneven, potentially leading to overall mooring system failure. This numerical study provides valuable insights into the design of mooring systems incorporating fiber ropes for OFPV platforms.
August 2024
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31 Reads
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2 Citations
Ocean Engineering
July 2024
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17 Reads
May 2024
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9 Reads
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1 Citation
Coastal Engineering
April 2024
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556 Reads
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9 Citations
Ocean Engineering
... For determining the NFP of structural elements various methods utilized such as finite element (FE) method (Hirwani and Panda, 2019;Jafari et al., 2019;Agarwal et al., 2022;Mohamed et al., 2022;Xi et al., 2024), boundary element (BE) method (Tanaka et al., 1988;Kögl, 2003;Najarzadeh et al., 2018), differential quadrature (DQ) method (Wu and Lai, 2015;Sun et al., 2024), discrete singular convolution (DSC) method (Wang and Xu, 2010;Xin and Hu, 2016), and differential transform (DT) method (Çatal, 2008;Khosravi et al., 2024). In this investigation, GDQM utilized for calculating the NFP of NDCSs. ...
December 2024
Applied Ocean Research
... Empowered by the universal approximation theory [25,26], neural networks are applied to solve the governing partial differential equations of target 3 systems [27,28]. Recently, physics-informed neural networks (PINN) have earned great attention in computational mechanics [29][30][31][32][33][34]. As its name suggests, PINN integrates physics laws defined by PDEs and experimental data as guidance for neural network training. ...
December 2024
Computers & Mathematics with Applications
... Infragravity waves are oceanic surface waves characterized by low frequencies, typically ranging from 0.004 Hz to 0.04 Hz, distinguishing them from wind waves and swells with frequencies between 0.04 Hz and 1 Hz. These waves play a significant role in various coastal processes, including resonance in harbors (Bowers, 1977;Gao et al., 2019;Okihiro et al., 1993;Thotagamuwage and Pattiaratchi, 2014;Zheng et al., 2023), morphological evolution (Li et al., 2025;Mendes et al., 2020;Roelvink et al., 2009;Ruffini et al., 2020), and hydrodynamics in surf zones (Contardo et al., 2019;Guedes et al., 2013;Padilla and Alsina, 2018) as well as on coral-reef flats (Liu and Li, 2018;Nwogu and Demirbilek, 2010). The generation, propagation, and dissipation of infragravity waves have consequently been the subject of extensive research over the past decades (see the review of Bertin et al., 2018). ...
January 2025
Coastal Engineering
... Scholars at home and abroad have carried out a series of studies on heave plates to effectively improve the hydrodynamic performance of floating platforms. Li et al. [13] compared single circular perforated and double circular solid heave plates to the original single solid heave plate of the OC4-DeepCwind semi-submersible FWT. Compared to the single solid plate, both heave and pitch motions increased by up to 40% with the perforated or double plates. ...
October 2024
Ocean Engineering
... The development of FPV platforms requires addressing complex factors, including mooring systems, hydrodynamic performance, material selection, and environmental considerations. According to Lian et al. [12], offshore FPV platforms need robust mooring systems capable of enduring harsh oceanic conditions. Various mooring configurations have been studied, such as all-chain, chain-polyester ropes-chain, and chain-nylon ropes-chain systems. ...
August 2024
... The ( ′ / )-Expansion Method has emerged as a powerful tool for solving nonlinear partial differential equations (PDEs) such as the NLSE and its coupled counterparts. This method facilitates the construction of exact traveling wave solutions in terms of hyperbolic, trigonometric, and rational functions, making it an effective approach for studying pulse interactions in nonlinear optical systems [25][26][27][28][29][30]. In this work, we apply the ( ′ / )-Expansion Method to the CNLSEs to derive explicit solutions that elucidate the role of SPM and XPM in pulse evolution. ...
August 2024
Ocean Engineering
... Qu (2024) focused on the geomorphological processes around the artificial island of Yangkou Harbor, Jiangsu, China, and noted that, at present, the sandbanks around the island are still in the process of dynamic evolution after the construction of the project and the local scouring around the island has not yet reached equilibrium. Meanwhile, the lack of long-term continuous monitoring during the harbor construction process has hindered the systematic study of these geomorphic processes [9]. Human activities, especially the construction of flood control facilities or reclamation projects, not only directly alter the local marine hydrodynamic environment but also may affect the long-term evolution of the tidal flat system by altering sediment holding space and migration patterns [10]. ...
May 2024
Coastal Engineering
... In addition, the oysters provide other services including shoreline protection, nutrient cycling, and provision of vital habitats for fish and other invertebrates ( Figure 1). However, over the past 200 years, natural oyster reefs worldwide have experienced a staggering decline, with over 85% of oyster reefs disappearing [8]. The oyster populations in several bays and estuaries across North America, Europe, and Oceania have now reached a state of functional extinction [9,10]. ...
April 2024
Ocean Engineering
... Significant soil erosion on the Loess Plateau has resulted in severe sediment load in the LYR, with overall sediment deposition observed to be approximately 5.52 Â 10 9 m 3 based on actual data. About 60% of this deposition occurred in the braided reach (Yang et al. 2024). The greatest effect of the huge sediment load in the LYR has resulted in the evident shrinkage of the main channel and, consequently, a sudden decrease in runoff capacity, which has culminated in the phenomena of secondary suspended rivers in specific reaches and poses a threat to local community and channel management. ...
February 2024
Journal of Hydrology
... Serving as vital links between maritime and land transport networks, harbors have acted as central hubs for a range of commercial activities. The water surface within a harbor experiences oscillations at forced and natural frequencies when exposed to external disturbances such as wave groups, tsunamis, and seismic waves (Bellotti and Franco, 2011;Gao et al., 2017;Kumar and Gulshan, 2018;Gao et al., 2020;Gao et al., 2021;Zheng et al., 2021;Luo et al., 2023;Shi et al., 2024). Harbor oscillations result in excessive movements of moored ships and disrupt loading/unloading operations, leading to significant economic losses (Sakakibara and Kubo, 2008;Uzaki et al., 2010;Diaz-Hernandez et al., 2015;Rupali et al., 2020;Costas et al., 2022). ...
September 2023