An experimental study of a flow-accelerating hydrokinetic device
Mannion, Brian McCormack, Vincent Kennedy, Ciaran Leen, Sean B. Nash, Stephen
Mannion, Brian
McCormack, Vincent
Kennedy, Ciaran
Leen, Sean B.
Nash, Stephen
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Publication Date
2018-05-01
Type
Article
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Citation
Mannion, B., McCormack, V., Kennedy, C., Leen, S. B., & Nash, S. (2019). An experimental study of a flow-accelerating hydrokinetic device. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 233(1), 148–162. https://doi.org/10.1177/0957650918772626
Abstract
Tidal energy researchers and developers use experimental testing of scaled devices as a method of evaluating device performance. Much of the focus to date has been on horizontal axis turbines. This study is focused on a novel vertical axis turbine which incorporates variable-pitch blades and a flow accelerator. The research involves laboratory testing of scale model devices in a recirculating flume. Computational fluid dynamic modelling is used to reproduce the measured flow data to investigate disparities in experimental data. The results show that the device is capable of achieving localised flow acceleration of up to a factor of 2 above the freestream velocity and achieved a mechanical power efficiency of 40%.
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Publisher
SAGE Publications
Publisher DOI
10.1177/0957650918772626
Rights
Attribution-NonCommercial-NoDerivs 3.0 Ireland