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%.
| Original language | English (Ireland) |
|---|---|
| Pages (from-to) | 148-162 |
| Number of pages | 15 |
| Journal | Institution of Mechanical Engineers. Proceedings. Part A: Journal of Power and Energy |
| Volume | 233 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2019 |
Keywords
- Tidal turbine
- flow acceleration
- power coefficient
- variable-pitch
- vertical axis
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Mannion B, McCormack V, Kennedy C, Leen S, Nash S
