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Leading Edge Vortex Development on Pitching and Surging Airfoils: A Study of Vertical Axis Wind Turbines

Dunne, Reeve and Tsai, Hsieh-Chen and Colonius, Tim and McKeon, Beverley J. (2016) Leading Edge Vortex Development on Pitching and Surging Airfoils: A Study of Vertical Axis Wind Turbines. In: Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). Springer Proceedings in Physics. No.185. Springer , Cham, pp. 581-587. ISBN 978-3-319-30600-1. http://resolver.caltech.edu/CaltechAUTHORS:20161202-082406384

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Abstract

Vertical axis wind turbine blades undergo dynamic stall due to the large angle of attack variation they experience during a turbine rotation. Particle image velocimetry on a pitching and surging airfoil was used to perform time resolved measurements at blade Reynolds numbers near turbine operating conditions of 10^5. These experiments were compared to simulations performed in the rotating turbine frame as well as the linear, experimental, frame at a Reynolds number of 10^3 to investigate rotational and Reynolds number effects. The flow was shown to develop similarly prior to separation, but the kinematics of vortices shed post separation were reference frame dependent.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1007/978-3-319-30602-5_71DOIArticle
http://link.springer.com/chapter/10.1007%2F978-3-319-30602-5_71PublisherArticle
ORCID:
AuthorORCID
Colonius, Tim0000-0003-0326-3909
McKeon, Beverley J.0000-0003-4220-1583
Additional Information:© 2016 Springer International Publishing Switzerland.
Group:GALCIT
Record Number:CaltechAUTHORS:20161202-082406384
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20161202-082406384
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:72514
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Dec 2016 22:59
Last Modified:07 Oct 2017 04:11

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