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Wang, P, Liu, Q, Li, C, Miao, W, Yue, M and Xu, Z (2022) Investigation of the aerodynamic characteristics of horizontal axis wind turbine using an active flow control method via boundary layer suction. Renewable Energy, 198. pp. 1032-1048. ISSN 0960-1481
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Investigation of the aerodynamic characteristics of horizontal axis wind turbine using an active flow control method via boundary layer suction.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. Download (3MB) | Preview |
Abstract
The boundary layer suction (BLS) has the merit of effectively suppressing the formation and development of separation vortices by removing low-momentum fluid occurs on the leading-edge of airfoil suction surface. The present paper numerically investigates the impacts of BLS on the aerodynamic performance of a horizontal axis wind turbine (HAWT). First, the dynamic mode decomposition method is adopted to gain an insight into the improvement mechanism of BLS control by analyzing the flow patterns of a two-dimensional S809 airfoil. Subsequently, the BLS is arranged on a NREL Phase VI reference turbine to study the power increment and flow field characteristics, and the effects of different working angles αs and momentum coefficients Cμ are investigated at different tip speed ratios (TSRs). The results indicate that the use of BLS control can increase the pressure difference between the suction surface and the pressure surface, raise the peak negative pressure at the leading edge and shift the airfoil flow separation point backwards, and thus effectively enhance the stability of the flow field. Furthermore, the BLS control can significantly improve the power extraction at low to medium TSR if this active device is appropriately implemented on the HAWT.
| Item Type: | Article |
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| Uncontrolled Keywords: | 0906 Electrical and Electronic Engineering; 0913 Mechanical Engineering; 0915 Interdisciplinary Engineering; Energy |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TD Environmental technology. Sanitary engineering T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Engineering |
| Publisher: | Elsevier |
| SWORD Depositor: | A Symplectic |
| Date Deposited: | 07 Jul 2023 09:00 |
| Last Modified: | 27 Aug 2023 00:50 |
| DOI or ID number: | 10.1016/j.renene.2022.08.075 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/20242 |
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