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Special Issue "Fluid Dynamics in Marine and Hydrokinetic Energy System"

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

Deadline for manuscript submissions: 10 August 2019

Special Issue Editors

Guest Editor
Prof. Dr. Fotis Sotiropoulos

Department of Civil Engineering, Stony Brook University, Stony Brook, NY 11794, USA
Website | E-Mail
Interests: Professor Sotiropoulos' research focuses on simulation-based engineering science for fluid mechanics, and problems in renewable energy, environmental, biological, and cardiovascular applications
Guest Editor
Prof. Xiaolei Yang

Department of Civil Engineering, Stony Brook University, Stony Brook, NY 11794, USA
Website | E-Mail
Interests: Dr. Yang is interested in developing computational methods for high Reynolds number, multi-scale, and multi-physics turbulent flows, and investigating the mechanism of complex turbulent flows in environmental and industrial applications including wind energy, marine and hydrokinetic energy, and urban environments

Special Issue Information

Dear Colleagues,

Marine and hydrokinetic (MHK) energy systems generate power from free-flowing waves, tides, and currents without the need for dams and diversions. MHK energy is a largely untapped resource worldwide, can be produced in close proximity to load centers, is more predictable than solar and wind, and has the potential to become an important contributor of the world renewable energy portfolio. Fluid dynamics phenomena in MHK energy systems are characterized by complex bathymetry; multiphase flows including air, water, and sediments; and the interaction between devices with each and the surrounding flow. The complex interplay of all these factors affects the performance, resilience, and environmental compatibility of MHK energy systems. Therefore, understanding and being able to model flows in MHK energy systems are critical prerequisites for reducing the levelized cost of energy and assessing the environmental impacts of MHK technologies.

This Special Issue aims to provide a forum for communicating recent advances in MHK energy research from the fluid dynamics point of view. Topics of interest comprise, but are not limited to, the following:

  • Computational fluid dynamics modeling and analysis;
  • Laboratory and field scale experimental studies;
  • Resource characterization;
  • Design and testing of MHK devices;
  • Design and optimization of device layouts;
  • Impact of MHK devices on the health of aquatic environments;
  • Effects of MHK devices on the transport of debris and sediments;
  • Impact on waterway stability.

Prof. Dr. Fotis Sotiropoulos
Prof. Dr. Xiaolei Yang
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 papers will be 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 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.


  • MHK devices
  • MHK arrays
  • Waterway turbulence
  • Wakes
  • Sediment transport
  • Array optimization
  • Resource characterization

Published Papers

This special issue is now open for submission, see below for planned papers.

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Type: Article
Title: Tidal Resource Inflow Characteristics: Connecting a Fundamental Fluid Dynamics Perspective with Practice
Authors: Vincent S. Neary 1,*, Budi Gunawan 1, Kevin A. Haas 2, J. Colby 3
1 Sandia National Laboratories, Water Power Technologies; [email protected]
2 Georgia Tech; 
3 Verdant Power;
* Correspondence: [email protected];
Abstract: The design of tidal energy converters (TEC), which convert kinetic energy from currents in tideways to electricity or other forms of energy, requires comprehensive characterization of the depth-limited unsteady boundary layer inflow hydrodynamics over the energy extraction plane and deployment-mounting system at the proposed tidal site. This characterization should ideally resolve the spatial and temporal variation of the mean current speed and turbulence, as well as the kinetic power and hydrodynamic loads, over multiple tidal cycles, including neap, spring and perigean spring tides (King tides). While simple flat plate boundary layer theory may adequately model these hydrodynamics at some sites, three-dimensional flow originating from complex bathymetry, upstream TECs or obstructions, have been shown to have significant effects on hydrodynamic loading and powering performance of TECs, and may also need to be considered. The present study reviews tidal inflow characterization from a fundamental fluid dynamics perspective, but ties this perspective to characterization methods and parameter definitions recommended by international standards organizations for best practice. Measurements and inflow characterization at tidal energy sites are described to illustrate the range of spatio-temporal variation at a site, and among different sites. Mean velocity and turbulence measurements are compared to predictions based on classical flat-plate boundary layer and other turbulence models.
Keywords: resource characterization, tidal energy, tidal energy conversion

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