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- Title
Study of the power performance of a variable-camber hydrofoil used in a flapping tidal stream turbine.
- Authors
Nguyen Le Dang, Hai; Jeong, Dasom; Ko, Jin Hwan
- Abstract
In this study, power analysis of a variable-camber hydrofoil was conducted through a comparison with a rigid hydrofoil when used in a flapping hydrofoil turbine (FHT). The responses obtained by a mathematical dynamic model are inputted to calculate the available power, input power, hydrodynamic power, extracted power and system efficiency. This work considers two scenarios with identical counter-loads and with similar amplitudes of the obtained response conditions. In the former scenario, the efficiency of the variable-camber hydrofoil becomes slightly higher than that of the rigid hydrofoil. Meanwhile, in the other scenario, the efficiency of the variable-camber hydrofoil is considerably higher than that of the rigid hydrofoil. This study shows that the variable-camber hydrofoil would be a good scheme for improving the power performance of an FHT despite the slight increase in complexity.
- Subjects
TIDAL currents; HYDROFOILS; TURBINES; CONDITIONED response; PERFORMANCE theory
- Publication
Journal of Marine Science & Technology, 2022, Vol 27, Issue 3, p1148
- ISSN
0948-4280
- Publication type
Article
- DOI
10.1007/s00773-022-00894-6