Sun, Chong and Lam, Wei Haur and Cui, Yonggang and Zhang, Tianming and Jiang, Jinxin and Guo, Jianhua and Ma, Yanbo and Wang, Shuguang and Tan, Teng Hwang and Chuah, Joon Huang and Lam, Su Shiung and Hamill, Gerard (2018) Empirical model for Darrieus-type tidal current turbine induced seabed scour. Energy Conversion and Management, 171. pp. 478-490. ISSN 0196-8904, DOI https://doi.org/10.1016/j.enconman.2018.06.010.
Full text not available from this repository.Abstract
Tidal current turbine has attracted many attentions, but the impact of Darrieus-type tidal current turbine on the seabed scour process still remains unclear. This work aims to propose an empirical model, which can be used to predict the maximum scour depth against different tip clearance and rotor radius. The study also presents the scour profiles along centreline of turbine by using the proposed empirical equations. A series of three-dimensional printed turbine models were placed in a circulating water flume to investigate the scour profiles. The results suggest that the scour depth increases with the decrease of tip clearance. When the turbine is installed very close to seabed, the scour process is live bed scour with the collapse of the slant bed. Under this kind of condition, the maximum scour depth will not further increase with the continuous decrease of tip clearance. The current experimental results propose that the maximum scour depth is about 80% deeper than scour depth around single pile. The maximum scour depth increases firstly and then decreases with the increase of rotor radius. Based on experimental results, an empirical model of Darrieus-type tidal current turbine induced seabed scour is proposed to predict the maximum scour depth and scour profiles along centreline of turbine.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Darrieus-type tidal current turbine; Seabed scour; Renewable energy; Empirical model |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Mar 2019 08:35 |
| Last Modified: | 04 Mar 2019 08:35 |
| URI: | http://eprints.um.edu.my/id/eprint/20592 |
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