Wind Energy Science
Wind Energy Science
WES
Articles | Volume 2, issue 1
Articles | Volume 2, issue 1
https://doi.org/10.5194/wes-2-317-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/wes-2-317-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 2, issue 1
Research article
 | 
19 Jun 2017
Research article |  | 19 Jun 2017

Vortex particle-mesh simulations of vertical axis wind turbine flows: from the airfoil performance to the very far wake

Philippe Chatelain, Matthieu Duponcheel, Denis-Gabriel Caprace, Yves Marichal, and Grégoire Winckelmans

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Cited articles

Beaudet, L.: Etude expérimentale et numérique du décrochage dynamique sur une éolienne à axe vertical de forte solidité, PhD thesis, Université de Poitiers, 2014.
Bristol, R. L., Ortega, J. M., Marcus, P. S., and Savas, O.: On cooperative instabilities of parallel vortex pairs, J. Fluid Mech., 517, 331–358, 2004.
Brown, R. E. and Line, A.: Efficient High-Resolution Wake Modeling Using the Vorticity Transport Equation, AIAA J., 43, 1434–1443, 2002.
Castelein, D.: Dynamic stall on vertical Axis Wind Turbines – Creating a benchmark of Vertical Axis Wind Turbines in Dynamic Stall for validating numerical models, Master's thesis, Technische Universiteit Delft, 2015.
Chatelain, P. and Koumoutsakos, P.: A Fourier-based elliptic solver for vortical flows with periodic and unbounded directions, J. Comput. Phys., 229, 2425–2431, http://www.sciencedirect.com/science/article/B6WHY-4Y4R4GD-1/2/1cf355678ffad889ad409f181e47840d, 2010.
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Vertical axis wind turbines (VAWTs) operate through inherently unsteady aerodynamics, unlike their horizontal axis counterparts (HAWTs). This greatly affects the structure of the wake, i.e., the region of velocity deficit and increased turbulence downstream of the machine. In this work, we use an advanced vortex method to identify the flow structures and instabilities at work in the decay of a VAWT wake, a crucial step if one wishes to optimize this decay or perform the design of VAWT farms.
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