Special Issue "Fluid Mechanics and Turbulence in Wind Farms"

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

Deadline for manuscript submissions: 31 January 2020.

Special Issue Editor

Dr. Richard Stevens
E-Mail Website
Guest Editor
Physics of Fluids Group, Max Planck Center Twente for Complex Fluid Dynamics, J. M. Burgers Center for Fluid Dynamics, and MESA+ Research Institute, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
Interests: wind energy, wind farm dynamics, turbulence, atmospheric boundary layers, thermal convection, numerical simulations, large eddy simulations, direct numerical simulations, high-performance computing

Special Issue Information

Dear Colleagues,

We invite submissions to a Special Issue of the journal Energies on the topic of “Fluid Mechanics and Turbulence in Wind Farms”.

Wind energy is among the world's fastest growing renewable sources. Recent years have seen a rapid growth in the size of commercially constructed and operated wind farms, both in the turbine size used as well as the number of turbines employed. The interaction of large wind farms with the atmospheric boundary layer leads to unique wind-turbine array boundary layer dynamics, which need to be better understood. The tremendous amount of length scales involved in this problem involves huge challenges from an experimental, modeling, and simulation point of view. The aim is to obtain a better understanding of the physics that determine wind farm performance in an attempt to improve performance. To address these issues, it is necessary to perform field measurement campaigns, wind tunnel measurements, novel wind farm modeling strategies, and different wind farm simulations.

For this Special Issue, we would like to encourage original contributions regarding recent developments on and results relating to field measurements, wind tunnel experiments, analytical and engineering wind farm models, and simulations of wind farms. Potential topics include, but are not limited to, the following: wind farm performance, LiDAR and SCADA measurements, wind tunnel measurements, wake effects, effects of thermal stability conditions of the boundary layer (stable and unstable conditions), Coriolis effects, diurnal cycle, gravity waves, effects of wind–wave interactions, wind farm control strategies, wind farm frequency regulation, complex terrain effects, effects of wind farms on meso-scale weather phenomena, farm-to-farm interactions, comparison studies, and wind farm performance forecasting.

Dr. Richard Stevens
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 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.

Keywords

  • Wind farms
  • Power production
  • Wake effects
  • Turbulence intensity
  • Atmospheric boundary layer
  • Thermal effects
  • Wind farm control
  • Complex terrain
  • Diurnal cycle
  • Field measurements
  • Wind tunnel experiments
  • Numerical simulations
  • Large eddy simulations
  • Reynolds-averaged Navier–Stokes
  • Meso-scale wind farm modeling.

Published Papers (1 paper)

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Research

Open AccessArticle
Large-Eddy Simulation of Yawed Wind-Turbine Wakes: Comparisons with Wind Tunnel Measurements and Analytical Wake Models
Energies 2019, 12(23), 4574; https://doi.org/10.3390/en12234574 - 30 Nov 2019
Abstract
In this study, we validated a wind-turbine parameterisation for large-eddy simulation (LES) of yawed wind-turbine wakes. The presented parameterisation is modified from the rotational actuator disk model (ADMR), which takes account of both thrust and tangential forces induced by a wind turbine based [...] Read more.
In this study, we validated a wind-turbine parameterisation for large-eddy simulation (LES) of yawed wind-turbine wakes. The presented parameterisation is modified from the rotational actuator disk model (ADMR), which takes account of both thrust and tangential forces induced by a wind turbine based on the blade-element theory. LES results using the yawed ADMR were validated with wind-tunnel measurements of the wakes behind a stand-alone miniature wind turbine model with different yaw angles. Comparisons were also made with the predictions of analytical wake models. In general, LES results using the yawed ADMR are in good agreement with both wind-tunnel measurements and analytical wake models regarding wake deflections and spanwise profiles of the mean velocity deficit and the turbulence intensity. Moreover, the power output of the yawed wind turbine is directly computed from the tangential forces resolved by the yawed ADMR, in contrast with the indirect power estimation used in the standard actuator disk model. We found significant improvement in the power prediction from LES using the yawed ADMR over the simulations using the standard actuator disk without rotation, suggesting a good potential of the yawed ADMR to be applied in LES studies of active yaw control in wind farms. Full article
(This article belongs to the Special Issue Fluid Mechanics and Turbulence in Wind Farms)
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