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Computational Fluid Dynamics: Technologies and Applications for Renewable Energy Systems, 2nd Edition

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A3: Wind, Wave and Tidal Energy".

Deadline for manuscript submissions: 30 May 2025 | Viewed by 1017

Special Issue Editor

Dr. Patrick G. Verdin

E-Mail Website
Guest Editor
Energy & Sustainability Theme, School of Water, Energy and Environment, Cranfield University, Cranfield MK43 0AL, UK
Interests: computational fluid dynamics; renewable energy systems; wind and tidal renewable energy; geothermal energy; solar energy; multiphase flow
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Research and Development of Renewable Energy systems must be accelerated to reach the Net-Zero target by the second half of the century, and play a crucial role in limiting global warming. Computational Fluid Dynamics (CFD) codes and software are now fully recognised as being important/necessary tools in all stages of a renewable energy system development, this includes design, prototyping, verification/certification, etc. 

Wind, tidal/waves, geothermal, and solar have been identified as leading technology options to decarbonise the energy system worldwide. Authors are invited to submit research and progress related to the development and application of CFD for the design, study and/or optimization of existing and/or novel renewable energy systems. This Special Issue will thus feature original research papers and review articles in these areas, including but not limited to:

  • Offshore/onshore wind energy,
  • Tidal/wave renewable energy,
  • Geothermal energy,
  • Solar energy.

Dr. Patrick G. Verdin
Guest Editor

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. Energies 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

  • computational fluid dynamics
  • fluid-structure interactions
  • wind energy
  • ocean energy
  • geothermal energy
  • solar energy

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Related Special Issue

Published Papers (2 papers)

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Research

18 pages, 3912 KiB  
Article
Numerical Investigation of Sheet-Gyroid Structure Modifications for Mixing Application in Renewable Energy Technologies
by Martin Beer and Radim Rybár
Energies 2025, 18(9), 2265; https://doi.org/10.3390/en18092265 - 29 Apr 2025
Abstract
The presented study focuses on evaluating the mixing properties of structures derived from the so-called sheet-gyroid geometry and their modifications as advanced mixing elements in renewable energy technologies. Using numerical simulations based on computational fluid dynamics (CFD), the hydrodynamic characteristics of the basic [...] Read more.
The presented study focuses on evaluating the mixing properties of structures derived from the so-called sheet-gyroid geometry and their modifications as advanced mixing elements in renewable energy technologies. Using numerical simulations based on computational fluid dynamics (CFD), the hydrodynamic characteristics of the basic sheet-gyroid structure and five geometric modifications were analyzed under laminar flow conditions simulating the mixing of water and ethylene glycol. The evaluation was conducted using the parameters mixing index and performance index, which express the efficiency of fluid homogenization and its associated energy demands. The results show that all tested geometries significantly improve the degree of mixing compared to an empty channel. The highest concentration homogeneity and best energy efficiency were achieved by the twisted sheet-gyroid structure. This geometric modification exhibits the highest value of the performance index, confirming its ability to achieve excellent mixing with minimal pressure losses. The results of the study demonstrated that, despite similar hydraulic losses among some of the structures, their fluid mixing performance differs, which highlights the importance of targeted geometric design of sheet-gyroid structures. These findings are essential for the design of efficient mixers in technological applications where intensive mixing combined with minimal energy consumption is a critical factor. Full article
(This article belongs to the Special Issue Computational Fluid Dynamics: Technologies and Applications for Renewable Energy Systems, 2nd Edition)
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24 pages, 4894 KiB  
Article
Unsteady Loading on a Tidal Turbine Due to the Turbulent Wake of an Upstream Turbine Interacting with a Seabed Ridge
by Sulaiman Hurubi, Hannah Mullings, Pablo Ouro, Peter Stansby and Tim Stallard
Energies 2025, 18(1), 151; https://doi.org/10.3390/en18010151 - 2 Jan 2025
Viewed by 694
Abstract
Tidal sites can present uneven seabed bathymetry features that induce favourable or adverse pressure gradients and are sources of turbulence, and so are likely to affect the operation, performance, and wake recovery dynamics of deployed tidal-stream turbines. Large-eddy simulations are conducted to analyse [...] Read more.
Tidal sites can present uneven seabed bathymetry features that induce favourable or adverse pressure gradients and are sources of turbulence, and so are likely to affect the operation, performance, and wake recovery dynamics of deployed tidal-stream turbines. Large-eddy simulations are conducted to analyse the unsteady loading of a tidal turbine subjected to the wake of an upstream turbine that interacts with a two-dimensional ridge located between the two turbines. Relative to an isolated turbine, blade fatigue loading is increased by up to 43% when subject to the wake of a turbine located 8 turbine diameters upstream interacting with a ridge located 2 turbine diameters upstream, whereas for the same spacing, the turbine wake led to a limited 6% reduction in loading and the ridge wake only caused a 79% increase. For larger spacings, the trends were similar, but the magnitude of difference reduced. Predictions of fatigue loads with a blade element momentum model (BEMT) provided a good agreement for flat bed conditions. However, the ridge-induced pressure gradient drives rapid spatial change of coherent flow structures, which limits the applicability of Taylor’s frozen turbulence hypothesis adopted in the BEMT. Reasonable prediction of rotor loading with BEMT was found to be obtained using the turbulent onset flow field at a plane one-diameter upstream of the turbine. This is more accurate than use of the planes at the rotor plane or two-diameters upstream, as coherent structures represent those modified by wake recovery and rotor induction in the approach flow to the turbine. Full article
(This article belongs to the Special Issue Computational Fluid Dynamics: Technologies and Applications for Renewable Energy Systems, 2nd Edition)
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