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Fluids
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Fluid Dynamics: Wave–Structure Interactions
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Fluid Dynamics: Wave–Structure Interactions

A special issue of Fluids (ISSN 2311-5521).

Deadline for manuscript submissions: closed (15 August 2022) | Viewed by 7128

Special Issue Editors

Prof. Dr. Yury Stepanyants

E-Mail Website
Guest Editor
School of Sciences, Faculty of Health, Engineering and Sciences, University of Southern Queensland, Toowoomba, QLD 4350, Australia
Interests: physical oceanography; fluid mechanics; nonlinear wave theory
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Trilochan Sahoo

E-Mail Website
Guest Editor
Department of Ocean Engineering and Naval Architecture, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
Interests: wave–structure interaction problems; coastal hydrodynamics and hydroelasticity

Special Issue Information

Dear Colleagues,

You are invited to contribute to a Special Issue of the journal Fluids in the broad area of wave–structure interaction. This Special Issue will provide an excellent opportunity for reporting the recent developments in the multidisciplinary branch of ocean engineering and allied branches of physical sciences, including cold region science and technology. Emphasis will be on the interaction of water/acoustic waves with rigid, permeable and flexible structures. Both the linear and nonlinear aspects of waves and structures are highly encouraged in the case of homogeneous as well as stratified fluids. Interaction of flows with marine infrastructures such as mooring platforms, gas and oil pipelines, harbor facilities, ships and offshore structures are also of interest. The Special Issue may present an amalgamation of theoretical, numerical and experimental results.

Prof. Dr. Yury Stepanyants
Prof. Dr. Trilochan Sahoo
Guest Editors

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. Fluids is an international peer-reviewed open access monthly 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 1800 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

  • gravity waves
  • permeable structure
  • flexible structure
  • wave–structure interaction
  • linear waves
  • non-linear waves
  • undulated sea bed
  • oscillatory flow
  • hydrodynamic force
  • flow–structure interaction
  • wave impact
  • wave resistance
  • computational fluid dynamics
  • dynamic characteristics

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Published Papers (3 papers)

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Research

11 pages, 1661 KiB  
Article
Effect of Internal Waves on Moving Small Vessels in the Sea
by Andrey Serebryany
Fluids 2023, 8(2), 75; https://doi.org/10.3390/fluids8020075 - 18 Feb 2023
Viewed by 2215
Abstract
Internal waves are responsible for many important processes in the ocean environment (ocean ventilation, energy transfer from large-scale processes to turbulence, etc.). Our goal is to draw attention to the relatively little studied effect of internal waves on ships at sea. We encountered [...] Read more.
Internal waves are responsible for many important processes in the ocean environment (ocean ventilation, energy transfer from large-scale processes to turbulence, etc.). Our goal is to draw attention to the relatively little studied effect of internal waves on ships at sea. We encountered this effect many times while working on the study of internal waves in the shelf zone. The work was carried out from a yacht equipped with the “Rio Grande 600 kHz” ADCP, which makes it possible to measure both the parameters of internal waves and other important parameters of the medium. Two typical examples of the impact of internal waves on a yacht are given. One, when the yacht was at anchor and a train of soliton-like internal waves passed under it. The second, when the yacht was moving and passing over a train of internal waves. Internal waves passing under the moored yacht shifted its position synchronously with the periods of passing waves. A uniformly moving yacht, passing over a package of internal waves synchronously with the period of waves, alternately increased and decreased the speed of its movement. The described effect is explained by the impact on the vessel of the orbital currents of internal waves. Under our conditions, at heights of internal waves reaching 10–15 m, the ship’s speed fluctuations reached 0.30 m/s, which was more than 10% of the ship’s speed. Full article
(This article belongs to the Special Issue Fluid Dynamics: Wave–Structure Interactions)
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31 pages, 28839 KiB  
Article
Hydrodynamics of an OWC Device in Irregular Incident Waves Using RANS Model
by Kshma Trivedi, Amya Ranjan Ray, Parothidil Anjusree Krishnan, Santanu Koley and Trilochan Sahoo
Fluids 2023, 8(1), 27; https://doi.org/10.3390/fluids8010027 - 11 Jan 2023
Cited by 9 | Viewed by 2434
Abstract
This research examines the hydrodynamic performance of an oscillating water column device placed over a sloping seabed under the influence of irregular incident waves. The numerical model is based on the Reynolds-veraged Navier–Stokes (RANS) equations with a modified k−ω turbulence model [...] Read more.
This research examines the hydrodynamic performance of an oscillating water column device placed over a sloping seabed under the influence of irregular incident waves. The numerical model is based on the Reynolds-veraged Navier–Stokes (RANS) equations with a modified k−ω turbulence model and uses the volume-of-fluid (VOF) approach to monitor the air–water interface. To explore the hydrodynamic performance of the OWC device in actual ocean conditions, the Pierson–Moskowitz (P-M) spectrum was used as the incident wave spectrum, together with the four distinct sea states which occur most often along the western coast of Portugal. The numerical simulation offers a comprehensive velocity vector and streamline profiles inside the OWC device’s chamber during an entire cycle of pressure fluctuation. In addition, the impact of the irregular wave conditions on the free-surface elevation at various places, the pressure drop between the chamber and the outside, and the airflow rate via the orifice per unit width of the OWC device are investigated in detail. The results demonstrate that the amplitudes of the inward and outward velocities via the orifice, free-surface elevations, and flow characteristics are greater for more significant wave heights. Further, it is noticed that the power generation and capture efficiency are higher for a seabed having moderate slopes. Full article
(This article belongs to the Special Issue Fluid Dynamics: Wave–Structure Interactions)
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Graphical abstract

17 pages, 1329 KiB  
Article
Oblique Long Wave Scattering by an Array of Bottom-Standing Non-Smooth Breakwaters
by Prakash Kar, Harekrushna Behera and Trilochan Sahoo
Fluids 2022, 7(11), 352; https://doi.org/10.3390/fluids7110352 - 15 Nov 2022
Viewed by 1689
Abstract
Bragg scattering of surface gravity waves by an array of submerged bottom-standing non-smooth breakwaters is studied under the assumption of linearized long wave theory. The closed-form long-wave analytical solutions are derived and validated by comparing them with the results available in the literature. [...] Read more.
Bragg scattering of surface gravity waves by an array of submerged bottom-standing non-smooth breakwaters is studied under the assumption of linearized long wave theory. The closed-form long-wave analytical solutions are derived and validated by comparing them with the results available in the literature. The role of various physical parameters such as breakwaters friction coefficient, depth, width and gap between the adjacent breakwaters are investigated by analyzing the reflection and transmission coefficients. Further, the time-domain simulation for the scattering of long gravity waves over multiple breakwaters is analysed for different values of parameters of breakwaters. The results reveal that the rough surface of the breakwater plays a vital role in reducing wave reflection and transmission. Moreover, it is observed that the transmitted wave dissipates completely for larger values of friction parameters. For certain critical angles, change in wave dissipation becomes maximum due to the variation of phase of the incident wave. Various findings can be considered as benchmark results for the design of the non-smooth structures to attenuate the waves based on the Bragg reflection. Full article
(This article belongs to the Special Issue Fluid Dynamics: Wave–Structure Interactions)
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