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For the first time, a fully-instrumented scaled tidal turbine is tested in short-duration focused wave groups representative of extreme environmental load cases expected at energetic tidal sites. In this paper, the subsequent variations in rotor-based loads, power and blade root bending moments are reported. These measurements are found to strongly follow the spectral and temporal form of the focused wave conditions, and peak loads and power output are found to exceed current-only values by 85% and 200% respectively. These rotor-averaged values display a high level of repeatability, demonstrating the suitability of focused waves for testing seabed-mounted tidal turbines. Extreme blade loads, which are dependent on angular position relative to wave phase, are captured through rapidly obtained repeat tests. New insight is subsequently gained into loading and response of tidal turbines in extreme sea conditions.
FingerprintDive into the research topics of 'Assessing extreme loads on a tidal turbine using focused wave groups in energetic currents'. Together they form a unique fingerprint.
- 3 Finished
Venugopal, V. & Borthwick, A.
13/04/16 → 31/10/19
FloWaveTT: UK Centre for marine energy research: The all UK waters, combined, current and wave test facility.
Bryden, I., Ingram, D. & Wallace, R.
1/10/10 → 28/02/11