期刊
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
卷 136, 期 -, 页码 101-113出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jweia.2014.10.021
关键词
Flutter energy harvesting; Turbulence; Piezoelectric; Wind velocity
资金
- Australian Research Council (ARC) [LP100200034]
- Partner Organisation - Fabrics and Composites Science and Technology (FCST) Pty Ltd.
- Australian Research Council [LP100200034] Funding Source: Australian Research Council
The response of a fluttering piezoelectric energy harvester was studied in smooth flow and in aspects of replicated Atmospheric Boundary Layer turbulence (12.7% intensity, 310-mm longitudinal integral length scale). The harvester was yawed and pitched, and the effects on the power output were examined. Key findings were the following: (1) off-axis flow conditions rapidly degraded the mean output power of the harvester; (2) turbulence, for this specific harvester, acted similarly to a dynamic damping mechanism; (3) for on-axis flow, turbulence degraded the power outputs relative to smooth flow and for off-axis flow, the turbulence enhanced the power outputs relative to smooth flow. Future challenges include determination of harvester efficiencies, and analysis of fatigue-induced performance degradation. (C) 2014 Elsevier Ltd. All rights reserved.
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