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Special Issue "Recent Advances in Aerodynamics of Wind Turbines"
Deadline for manuscript submissions: closed (31 May 2019).
Electric power from wind turbines is one of the most efficient means of producing green energy, both in terms of cost and capacity. Since the levelized cost of electricity (LCOE) from wind energy is still decreasing, the number of installed turbines, as well as their size, will continue to grow. When the blades get longer, bending moments from gravity alone may become a real structural problem and one way to alleviate this is to increase the maximum lift coefficient, to allow more slender and thus lighter blades. Additionally, active and passive aerodynamic control has become important to reduce fatigue and extreme loads from turbulent inflow. Examples of active aerodynamic control for load alleviation include using distributed flaps along the blade or injecting jets from inside the blades to the surface to re-energize the boundary layer and suppress separation. Almost all modern wind turbine blades are equipped with vortex generators to passively delay stall, and some modern blades have built in a bend-twist coupling that naturally reduces the angle of attack and thus the aerodynamic loads in gusts. Further, more exotic means of increasing aerodynamic efficiency of wind turbines could be using winglets or even placing an entire diffusor around the rotor. A very important topic to be addressed is the advancement of numerical and experimental tools for determining the aerodynamic loads and the development of the turbulent boundary layer on the blade surface. How the knowledge from high fidelity models and experiments is used to improve engineering design tools, often based on a Blade Element Momentum approach, is also of high practical interest. Topics related to vertical axis wind turbines, airborne concepts, and small wind turbines to be used in urban environment will also be included. It is the intention of this Special Issue to address all the different advancements made to improve the understanding and modelling of wind turbine aerodynamics, with the purpose of supporting increasing aerodynamic efficiency and the upscaling of wind turbines in order to be able to further decrease the LCOE from wind energy.
Prof. Martin Otto Laver Hansen
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.
- wind tunnels
- vortex generators
- Gurney flaps
- active flaps
- load alleviation
- aerodynamic devices
- boundary layer control
- field tests