Recent Developments in Offshore Wind Turbines

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Turbomachinery".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 1675

Special Issue Editors

College of Science and Technology, Nihon University, Chiba, Japan
Interests: offshore wind turbines; marine hydrodynamics; floating structures; gap/moonpool resonances; numerical modeling

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Guest Editor
Engineering College, Ocean University of China, Qingdao, China
Interests: offshore wind turbine; wave-structure interaction; digital twin; structural safety monitor
School of Civil Engineering, Tianjin University, Tianjin, China
Interests: nonlinear dynamics of offshore floating structures; marine renewable energy; floating offshore wind turbine

Special Issue Information

Dear Colleagues,

To achieve the global net-zero emissions goal, offshore wind energy as a promising source of renewable energy has been attracting extensive attentions and continuous investments. Nowadays, offshore wind turbines are developing fast towards large-sized and deep-water applications, which raises new challenges in technical and economic feasibility. A typical offshore wind turbine is usually a highly integrated and complex energy-harvesting system, which may experience extremely harsh sea conditions. The design and the dynamic analysis of an offshore wind turbine often require multidisciplinary knowledge. From the point of view of safety, the design of an offshore wind turbine needs to be able to survive in extreme weather. On the other hand, from a commercial perspective, efforts are required for cost reduction via the improvement in design and engineering practice. To overcome the challenges and promote the advances in offshore wind turbines, theoretical and technical innovations are needed. This motivates us to propose this Special Issue to publish recent frontier advances in all aspects of offshore wind turbines.

Submissions in various forms including research articles, review papers, short communications, etc., are welcome. Topics of interest for publication include, but are not limited to the following:

  • offshore wind turbine design 
  • reliability, failure and cost analysis; transportation
  • installation, monitoring and maintenance approaches
  • numerical modeling and code validation
  • blade element momentum theory
  • model and prototype testing
  • wind turbine foundations and mooring system
  • control and optimization methods
  • offshore wind measurements
  • aeroelastic/seismic/structural/fatigue analysis
  • structural safety monitor
  • machine learning applications 
  • digital twin
  • computational fluid dynamics

We look forward to receiving your contributions.

Dr. Lei Tan
Dr. Shuang Chang
Dr. Yan Li
Guest Editors

Manuscript Submission Information

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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. Machines 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 2400 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

  • offshore wind turbine
  • dynamic analysis
  • hydrodynamics
  • aerodynamics
  • mooring dynamics
  • numerical modeling
  • physical model testing
  • floating structures

Published Papers (1 paper)

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Research

18 pages, 7477 KiB  
Article
Power Generation Enhancement of Horizontal Axis Wind Turbines Using Bioinspired Airfoils: A CFD Study
by Hamid R. Kaviani and Mohammad Moshfeghi
Machines 2023, 11(11), 998; https://doi.org/10.3390/machines11110998 - 30 Oct 2023
Viewed by 1025
Abstract
This research investigates the performance implications of employing a bioinspired airfoil (seagull’s wing cross-section) in horizontal-axis wind turbines. Specifically, we replaced the S809 airfoil from NREL Phase VI with an airfoil modeled after seagull wings. Initially, we calibrated four coefficients of the GEKO [...] Read more.
This research investigates the performance implications of employing a bioinspired airfoil (seagull’s wing cross-section) in horizontal-axis wind turbines. Specifically, we replaced the S809 airfoil from NREL Phase VI with an airfoil modeled after seagull wings. Initially, we calibrated four coefficients of the GEKO turbulence model for both the S809 and the bioinspired airfoil, utilizing experimental data. Subsequently, using the calibrated generalized k-ω (GEKO) model, we conducted a comparative analysis between the S809 and the seagull airfoils, revealing the considerable superiority of the seagull airfoil in terms of lift and drag coefficients. Furthermore, we numerically simulated the original NREL Phase VI turbine and a modified version where the S809 airfoil was replaced with the seagull airfoil using 3D computational fluid dynamics (CFD) with the airfoil-based-calibrated GEKO turbulence model. This investigation spanned a wide range of air speeds, including 7 m/s, 13 m/s, and 25 m/s. At these wind speeds, we observed a substantial increase in turbine power generation, with enhancements of 47.2%, 204.4%, and 103.9%, respectively. This study underscores the significant influence of nature’s designs in advancing energy extraction within industries, particularly within the wind energy sector. Full article
(This article belongs to the Special Issue Recent Developments in Offshore Wind Turbines)
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