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Hydrodynamics and Sediment Transport in Ocean Engineering—Second Edition

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydraulics and Hydrodynamics".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 379

Special Issue Editors


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Guest Editor
School of Civil Engineering, Tianjin University, Tianjin, China
Interests: ocean hydrodynamics; sediment transport; ocean engineering; local scour; seabed evolution; renewable energy
Special Issues, Collections and Topics in MDPI journals
School of Engineering, Design and Built Environment, Western Sydney University, Penrith, NSW, Australia
Interests: fluid–structure interaction; local scour of subsea structures; wave energy; fundamental fluid mechanics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

To accommodate for our ever-increasing energy needs, the exploration of oil and natural gas is moving towards the deep sea, and tremendous efforts have been made to develop viable renewable energy sources from the ocean. It is utterly important and challenging to guarantee the safety of offshore structures constructed in the ocean for the purpose of extracting resources and energy. Ocean hydrodynamics, such as waves, tidal currents, tropical storms, and even internal waves, have different characteristics and may result in variable kinds of failures of offshore structures. Sediment transport on the seabed due to the long actions of ocean hydrodynamics can also change the seabed’s morphology, such as local scour and large-scale seabed evolution, among others, which may have significant influences on the stability of offshore structures. This Special Issue aims to collate articles that highlight the latest research on hydrodynamics and sediment transport in ocean engineering through variable methods, including theoretical analyses, numerical simulations, and experiments. We aim to cover a wide variety of topics, including, but not limited to, the following: waves and tidal currents; internal waves; submarine pipelines/cables; flow/wave–structure interactions; local scour/seabed evolution; and renewable energy. Papers that report new research methods, fundamental fluid mechanics, or applied research outcomes in the relevant areas are welcome to be submitted.

Dr. Zhipeng Zang
Dr. Ming Zhao
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. 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

  • waves and tidal current
  • internal waves
  • submarine pipeline/cables
  • flow/wave–structure interactions
  • local scour/seabed evolution
  • renewable energy

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Published Papers (1 paper)

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Research

15 pages, 4816 KiB  
Article
Numerical Investigation on the Hydrodynamic Coefficients of Subsea Suspended Pipelines Under Unidirectional Currents
by Xiaowei Huang, Deping Zhao, Ganqing Zuo, Jianfeng Ren and Guoqiang Tang
Water 2025, 17(9), 1382; https://doi.org/10.3390/w17091382 - 4 May 2025
Viewed by 217
Abstract
Hydrodynamic coefficients of subsea suspended pipelines are crucial for fatigue and stability assessments. The effect of the gap height to diameter ratio e/D (0.1 ≤ e/D ≤ 2.0) and boundary layer thickness to diameter ratio δ/D (0.5 [...] Read more.
Hydrodynamic coefficients of subsea suspended pipelines are crucial for fatigue and stability assessments. The effect of the gap height to diameter ratio e/D (0.1 ≤ e/D ≤ 2.0) and boundary layer thickness to diameter ratio δ/D (0.5 ≤ δ/D ≤ 3.0) on the force coefficients under unidirectional current conditions with the Reynolds numbers Re in the range of 1 × 104Re ≤ 1 × 105 are investigated via numerical simulations. The results show that the average drag coefficient increases, whereas the average lift coefficient decreases gradually with the increasing e/D. The vortex shedding is inhibited by the wall for e/D < 0.24, starts at e/D = 0.24, becomes stronger with the increase in e/D in the range from 0.24 to 0.5, and approximates to that behind a wall-free cylinder for e/D > 0.5. The effect of δ/D can be eliminated if the coefficients are normalized by the undisturbed flow velocity at the height of the center of the pipeline. Moreover, empirical prediction formulas are proposed describing the drag and lift coefficients as the function of e/D, which can be applied to engineering designs related to free spans. Full article
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