Downstream characteristics of extended flat plate trailing edge on S809 wind turbine blade under various turbulent intensities
Aircraft Engineering and Aerospace Technology
ISSN: 0002-2667
Article publication date: 11 October 2023
Issue publication date: 13 November 2023
Abstract
Purpose
This study aims to investigate the effect of downstream characteristics of S809 wind turbine blade with various extended flat plate (EFP) configuration. Wind farms are recently modified to improve the power production through placing number of wind turbines and locations.
Design/methodology/approach
A series of wind tunnel experiments were carried out to evaluate the downstream wake characteristics of the S809 airfoil attached with various EFP (EFP, A = 0.1C, 0.2C and 0.3C) at various angles of attack corresponding to free stream velocity Reynolds number (Re) = 2.11 × 105 and various turbulence intensity (TI = 5%, 7%, 10% and 12%).
Findings
For the S809 wind turbine blade attached with EFP, the downstream velocity ratio decreases with increasing in angle of attack and the velocity deficit decrease with increasing turbulence intensity (TI) up to TI = 10%. The wake intensity for the S809 wind turbine blade and S809 airfoil with 10% of chord EFP performs the same for each downstream location.
Practical implications
Placing the wind turbine in the wind park next to another wind turbine poses a potential challenge for the park power performance. This research addresses the characteristics of the downstream turbulence intensity profile modified with the EFP in the wind turbine blade which improves the downstream characteristics of the turbine in the wind park.
Originality/value
The downstream velocity ratio decreases with increasing angle of attack and the velocity deficit decrease with increasing turbulence intensity (TI) up to TI = 10%.
Keywords
Acknowledgements
This research work was supported by the Science Engineering Research Board (SERB), Department of Science & Technology (DST), Government of India, File No: CRG/2021/005720.
Citation
S., M. and S., N.P. (2023), "Downstream characteristics of extended flat plate trailing edge on S809 wind turbine blade under various turbulent intensities", Aircraft Engineering and Aerospace Technology, Vol. 95 No. 10, pp. 1678-1693. https://doi.org/10.1108/AEAT-02-2023-0040
Publisher
:Emerald Publishing Limited
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