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22 Results Found

  • Article
  • Open Access
4 Citations
1,964 Views
26 Pages

Although twin pipelines in series have been used to transport hydrocarbons in engineering practice, most previous studies focused on the dynamic response of the seabed around a single pipeline. A two-way coupling model of fluid–structure–...

  • Article
  • Open Access
4 Citations
3,947 Views
21 Pages

24 March 2022

Jack-up offshore platform is a type of important marine structure, which is mainly used for satellite launch, oil exploitation, and other engineering tasks in the offshore area. The offshore platform is bound to be subjected to wave loading in the co...

  • Article
  • Open Access
3 Citations
2,582 Views
20 Pages

8 November 2021

This paper analyses the fluid–seabed–structure interactions (FSSI) around the open-ended pile by applying the in-house solver established on the open-source Computational Fluid Dynamics (CFD) platform. The Reynolds-averaged Navier–Stokes (RANS) equat...

  • Proceeding Paper
  • Open Access
5 Citations
1,086 Views
12 Pages

On the Exploration of the Influence of Seabed Reflected Waves on Naval Structures

  • Jacopo Bardiani,
  • Marco Giglio,
  • Claudio Sbarufatti and
  • Andrea Manes

13 February 2025

The interaction between naval structures and underwater shock waves generated by explosions is critical in marine engineering. Numerical analysis is pivotal in investigating the effects of reflected waves from the free surface and the seabed on subme...

  • Article
  • Open Access
2 Citations
2,107 Views
26 Pages

In marine engineering, the study of underwater explosion effects on naval and offshore structures has gained significant attention due to its critical impact on structural integrity and safety. In practical applications, a crucial aspect is determini...

  • Article
  • Open Access
10 Citations
1,814 Views
19 Pages

In practical applications, the prediction of the explosive mass of an underwater explosion represents a crucial aspect for defining extreme scenarios and for assessing damage, implementing defensive and security strategies, and ensuring the structura...

  • Article
  • Open Access
1 Citations
958 Views
18 Pages

20 December 2024

The seismic safety evaluation of artificial reef islands is of great significance for ensuring their long-term stable operation and the safety of residents’ lives. However, due to an insufficient understanding of coral reefs’ basic charac...

  • Review
  • Open Access
18 Citations
6,152 Views
21 Pages

Advances in Numerical Reynolds-Averaged Navier–Stokes Modelling of Wave-Structure-Seabed Interactions and Scour

  • Pilar Díaz-Carrasco,
  • Sergio Croquer,
  • Vahid Tamimi,
  • Jay Lacey and
  • Sébastien Poncet

This review paper presents the recent advances in the numerical modelling of wave–structure–seabed interactions. The processes that are involved in wave–structure interactions, which leads to sediment transport and scour effects, are summarized. Subs...

  • Article
  • Open Access
2 Citations
1,373 Views
20 Pages

Numerical Simulation of Wave-Induced Scour in Front of Vertical and Inclined Breakwaters

  • Xin Liu,
  • Tomoaki Nakamura,
  • Yong-Hwan Cho and
  • Norimi Mizutani

9 December 2024

The erosion of the seabed in front of shoreline structures due to wave action is a critical concern. While previous models accurately depict fluid and sediment interactions, they each have limitations and require significant computational resources,...

  • Article
  • Open Access
3 Citations
2,965 Views
23 Pages

1 April 2022

This study investigated the hydrodynamics of a solitary wave passing a vertical cylinder over a viscous mud bed for the first time. A highly viscous Newtonian fluid was assumed as a simplified model for fluid mud. A three-dimensional numerical wave f...

  • Article
  • Open Access
8 Citations
4,336 Views
27 Pages

Cofferdams are frequently used to assist in the construction of offshore structures that are built on a natural non-homogeneous anisotropic seabed. In this study, a three-dimensional (3D) integrated numerical model consisting of a wave submodel and s...

  • Article
  • Open Access
1 Citations
1,639 Views
30 Pages

Study on the Effects of Internal Building Layouts on Tsunami-Driven Single-Container Motion

  • Yudou Hou,
  • Tomoaki Nakamura,
  • Yong-Hwan Cho and
  • Norimi Mizutani

This study investigated the complex interactions among tsunamis, debris, and coastal building structures under extreme hydrodynamic conditions. We performed numerical simulations to explore the influence of varying wave conditions, debris, and buildi...

  • Article
  • Open Access
2 Citations
1,364 Views
18 Pages

Dynamic Analysis of Submarine-Buried Pipelines Considering Fluid–Structure Interaction

  • Huilin Xu,
  • Qiang Guo,
  • Xuetong Wang,
  • Huihui Sun,
  • Zhanwang Dong,
  • Jintong Gu and
  • Chengyu Zhang

27 January 2025

Buried pipes are widely used for submarine water transportation, but the complex operating conditions in the seabed pose challenges for the modeling of buried pipes. In order to more accurately capture the dynamic behavior of the buried pipes in the...

  • Article
  • Open Access
7 Citations
2,693 Views
25 Pages

Influence of Tsunami-Driven Shipping Containers’ Layout on Their Motion

  • Yudou Hou,
  • Tomoaki Nakamura,
  • Yong-Hwan Cho,
  • Norimi Mizutani and
  • Takashi Tomita

5 December 2022

This study investigated the interaction between containers under extreme hydrodynamic conditions modeled on tsunamis to assess whether the number and layout of containers affect their motion and to guide future studies on numerical simulations descri...

  • Article
  • Open Access
4 Citations
2,335 Views
15 Pages

8 October 2022

Recently, there have been frequent reports of subsea cable breakage accidents caused by the drop of an anchor pile for aquaculture works involving subsea cables for high-voltage direct current (HVDC) transmission embedded in the southwest sea of Kore...

  • Review
  • Open Access
11 Citations
4,688 Views
33 Pages

Developments in Modeling Techniques for Reliability Design of Aquaculture Cages: A Review

  • Chien Ming Wang,
  • Mingyuan Ma,
  • Yunil Chu,
  • Dong-Sheng Jeng and
  • Hong Zhang

Offshore aquaculture is gaining traction due to space limitations in nearshore waters, more pristine water, cooler temperatures, and better waste dispersal. This move has spurred the development of new technologies for offshore aquaculture. Despite t...

  • Review
  • Open Access
1,295 Views
22 Pages

Submarine gravity flows, e.g., debris flows and turbidity currents, pose a significant threat to offshore pipeline integrity. This risk primarily manifests through the imposition of substantial dynamic loads on pipelines or their large displacement w...

  • Article
  • Open Access
1 Citations
1,070 Views
27 Pages

4 March 2025

This study investigates the hydrodynamic and morphological effects caused by non-powered floating objects (e.g., barges, pontoons, and floating or moored platforms) that are towed by external forces (such as tugboats) across flat, shallow seabeds. Th...

  • Article
  • Open Access
1 Citations
3,026 Views
18 Pages

There are many methods for crushing seabed rock such as a using a free-falling crusher, blasting, and chemical liquid expansion. Blasting and chemical liquid expansion can lead to environmental destruction, noise pollution, and civil complaints. Ther...

  • Article
  • Open Access
143 Views
17 Pages

16 December 2025

Nonlinear water waves (NWWs) can be generated by the vertical bottom disturbance, which represents the conceptual processes of the rise of seabed rupture under seismic loads. To explore the correlation between the disturbance parameters and the wave...

  • Article
  • Open Access
1 Citations
963 Views
39 Pages

18 September 2024

In the future, the power of a commercial ocean current energy convertor will be able to reach the MW class, and its corresponding mooring rope tension will be very good. However, the power of convertors currently being researched is still at the KW c...