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Water
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Wave–Structure Interaction in Coastal and Ocean Engineering
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Wave–Structure Interaction in Coastal and Ocean Engineering

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Oceans and Coastal Zones".

Deadline for manuscript submissions: 25 January 2025 | Viewed by 4487

Special Issue Editors

Dr. Ming He

E-Mail Website
Guest Editor
School of Civil Engineering, Tianjin University, Tianjin 300350, China
Interests: wave mechanics; wave-structure interaction; floating structure; breakwater; smoothed particle hydrodynamics
Special Issues, Collections and Topics in MDPI journals
Dr. Can Yang

E-Mail Website
Guest Editor Assistant
College of Shipbuilding Engineering, Harbin Engineering University, Harbin, China
Interests: wave–structure interaction; wave energy converter; fish cage; floating structure; immersed tunnel
Dr. Ruijia Jin

E-Mail Website
Guest Editor Assistant
Tianjin Research Institute for Water Transport Engineering, M.O.T., Tianjin 300456, China
Interests: wave–structure interaction; potential flow theory; numerical simulation; physical mode tests; submerged floating tunnel

Special Issue Information

Dear Colleagues,

In coastal and ocean engineering, waves, as a dominant dynamic factor, need to be taken into account during the design, construction, and operation of structures. The study of wave–structure interaction enables predictions of structural responses while analyzing changes in flow fields. With the advancements in research methods, wave–structure interaction is progressing towards more complex wave conditions and more intricate structural designs.

The aim of this Special Issue is to provide a platform for scholars and engineers to present their novel research on the state of the art of wave–structure interaction in coastal and ocean engineering. The main topics include, but are not limited to the following:

  1. Interactions between waves and fixed/floating structures;
  2. Interactions between linear/nonlinear waves and structures;
  3. The theoretical analysis of wave–structure interaction;
  4. Numerical simulations of wave–structure interaction;
  5. Physical experiments on wave–structure interaction.

Dr. Ming He
Guest Editor

Dr. Can Yang
Dr. Ruijia Jin
Guest Editor Assistants

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • wave–structure interaction
  • linear and nonlinear waves
  • fixed and floating structures
  • theoretical analysis
  • numerical simulation
  • physical experiment

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Published Papers (4 papers)

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Research

18 pages, 14087 KiB  
Article
Analysis of the Effects of Differently Shaped Embankments on the Density Current
by Jinichi Koue
Water 2024, 16(23), 3369; https://doi.org/10.3390/w16233369 - 23 Nov 2024
Viewed by 326
Abstract
Density currents, fluid flows driven by differences in density, play a crucial role in disaster prevention for water pollution and tsunami mitigation, particularly due to thermal releases from power plants. Understanding their dynamics is pivotal for effective mitigation strategies. While the influence of [...] Read more.
Density currents, fluid flows driven by differences in density, play a crucial role in disaster prevention for water pollution and tsunami mitigation, particularly due to thermal releases from power plants. Understanding their dynamics is pivotal for effective mitigation strategies. While the influence of seabed and lake bottom topography on density currents is well-studied, research on how embankment shapes affect these currents has been limited. This study aimed to fill this gap by experimentally and numerically analyzing the flow dynamics of density currents using various embankment shapes in a controlled water tank environment. The findings revealed distinct variations in density perturbation across different embankment shapes. Specifically, density currents exhibited reduced head velocities in embankments shaped as right-angled triangles, rectangles, and L-shapes, in that sequential order. This research underscores the significance of embankment design in modifying density currents, offering valuable insights for optimizing disaster management strategies related to water pollution and tsunami hazards induced by thermal effluents from industrial sources. Full article
(This article belongs to the Special Issue Wave–Structure Interaction in Coastal and Ocean Engineering)
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23 pages, 16937 KiB  
Article
Study on the Characteristics of Flow over a Seawall and Its Impact on Pedestrians under Solitary Wave Action
by Yadong Hou, Xizeng Zhao, Gang Tao, Zhaoyuan Huang, Nanhui Xu and Zequan Leng
Water 2024, 16(16), 2357; https://doi.org/10.3390/w16162357 - 22 Aug 2024
Viewed by 962
Abstract
In response to the incident of tourists falling into the sea due to waves on the seawall berm at Macau Road, Qingdao, during the passage of Typhoon “Songda” in 2022, a combination of numerical simulations and physical model experiments was performed to investigate [...] Read more.
In response to the incident of tourists falling into the sea due to waves on the seawall berm at Macau Road, Qingdao, during the passage of Typhoon “Songda” in 2022, a combination of numerical simulations and physical model experiments was performed to investigate the mechanics of the event, with emphasis on the wave flow characteristics and the flow evolution process on the seawall berm as well as the force exerted on a human body-equivalent cylinder model. The study found that the thickness of the return flow was significantly greater than that of the overtopping flow on the landward part of the berm. The recoil forces applied to the model on the berm were larger than the impact forces, and the ratio tended towards 1 as the wave height increased. In addition, the stability of pedestrians on the seawall berm was analyzed. The instability conditions for pedestrians in cross-wave flows differed slightly from those in floods. Full article
(This article belongs to the Special Issue Wave–Structure Interaction in Coastal and Ocean Engineering)
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23 pages, 6624 KiB  
Article
Numerical Analysis of Hydrodynamic Characteristics of Two-Dimensional Submerged Structure in Irregular Waves
by Ruijia Jin, Yu Zhang, Zhibo Zhou and Ming He
Water 2024, 16(12), 1693; https://doi.org/10.3390/w16121693 - 13 Jun 2024
Viewed by 893
Abstract
A comprehensive two-dimensional (2D) time-domain numerical model is established to investigate the interaction of irregular waves and submerged structures with different sections. The model specifically focuses on the dual-lane submerged floating tunnel (SFT) designs, encompassing elliptical, twin-circular, and round rectangular sections. For the [...] Read more.
A comprehensive two-dimensional (2D) time-domain numerical model is established to investigate the interaction of irregular waves and submerged structures with different sections. The model specifically focuses on the dual-lane submerged floating tunnel (SFT) designs, encompassing elliptical, twin-circular, and round rectangular sections. For the hydrodynamic analysis, we adopt the second-order potential flow theory, while for the mooring line simulations, we employ the slender rod theory, taking into account the entire hydrodynamic load acting on it. In the coupled dynamic analysis, the fourth-order Adams–Bashforth–Moulton method, Newmark-β method, and Newton–Raphson iteration scheme are utilized for the coupled motion equation of the floating body and the dynamic equation of the mooring riser system. Experimental free decay tests are conducted to determine the damping coefficients of various section shapes in different directions. Our analysis delves into the detailed motion responses and mooring tensions of the SFTs with different section forms under irregular waves. We compare and contrast these responses in both time and frequency domains, particularly focusing on movement trends. The elliptical section structure emerges as the most stable design based on our comparisons. These findings provide valuable insights for the selection of optimal section shapes for dual-lane SFTs. Full article
(This article belongs to the Special Issue Wave–Structure Interaction in Coastal and Ocean Engineering)
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30 pages, 14007 KiB  
Article
Stability Analysis of Cofferdam with Double-Wall Steel Sheet Piles under Wave Action from Storm Surges
by Yan Zhu, Jingchao Bi, Haofeng Xing, Ming Peng, Yu Huang, Kaifang Wang and Xinyu Pan
Water 2024, 16(8), 1181; https://doi.org/10.3390/w16081181 - 20 Apr 2024
Viewed by 1614
Abstract
Double-wall steel sheet piles (DSSPs) are widely used in large-span cofferdams for docks due to their good performance against wave action during storm surges. This paper describes a study of the dynamic behavior of a DSSP cofferdam under wave action through flume tests [...] Read more.
Double-wall steel sheet piles (DSSPs) are widely used in large-span cofferdams for docks due to their good performance against wave action during storm surges. This paper describes a study of the dynamic behavior of a DSSP cofferdam under wave action through flume tests and a numerical simulation that combined computational fluid dynamics (CFD) and the finite element method. The influences of the water level and wave height on the DSSP cofferdam were investigated experimentally and numerically. Tall waves in shallow water broke upon and impacted the seaside pile with large dynamic wave pressure, dramatically increasing the stress and displacement of the seaside pile. The overlap of the traveling and reflected waves increased the excess pore water pressure near the seaside pile due to taller overlapped waves and higher wave frequency. The DSSP cofferdam failed under the combined actions of the dynamic wave pressure and erosion of the landside seabed. The leakage and overflow of the breaking waves resulted in significant erosion of the landside seabed and greatly weakened the support of the seabed. The dynamic wave pressure then pushed the DSSP cofferdam until it failed. The simulation with the combined methods of CFD and FEM resulted in trends that were similar to those of the test measurements. Compared to the quasi-static method and pseudo-dynamic method, the results of the simulation via the present method were much closer to the test results because the simulation included the effects of breaking waves. The reinforced measure worked well to prevent the DSSP cofferdam in a sandy seabed foundation from continuous failures of deformation–leakage–erosion–tilting. However, it failed in a clay interlayer seabed foundation due to the large settlement. Full article
(This article belongs to the Special Issue Wave–Structure Interaction in Coastal and Ocean Engineering)
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