Numerical Investigation of Performance Enhancement of the S809 Airfoil and Phase VI Wind Turbine Blade Using Co-Flow Jet Technology

Making full use of wind energy can effectively alleviate the global energy shortage and environment contamination problems. Nevertheless, how to significantly improve the performance of the wind turbine airfoil and blade is a crucial issue. As the novel flow control method, the co-flow jet (CFJ) tec...

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Bibliographic Details
Published in:Energies (Basel) 2021-11, Vol.14 (21), p.6933
Main Authors: Zhang, Shunlei, Yang, Xudong, Song, Bifeng
Format: Article
Language:English
Subjects:
active flow control
Aerodynamic coefficients
Airfoils
co-flow jet
Contamination
Control methods
Efficiency
Energy consumption
Energy shortages
Flow control
Maximum power
Momentum
Numerical analysis
performance enhancement
Phase VI
Plasma
Research methodology
S809 airfoil
Technology
Tip speed
Turbine blades
Turbines
Wind power
wind turbine blade
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Summary:Making full use of wind energy can effectively alleviate the global energy shortage and environment contamination problems. Nevertheless, how to significantly improve the performance of the wind turbine airfoil and blade is a crucial issue. As the novel flow control method, the co-flow jet (CFJ) technology is one of the most potential methods to solve this problem. Thus, the effects of the CFJ technology on the performance enhancement of the S809 airfoil and Phase VI wind turbine blade are explored in this study. Furthermore, the effects of the injection location and jet momentum coefficient are studied, and an adaptive jet momentum coefficient strategy of the CFJ technology is proposed. Results demonstrate that the CFJ technology can significantly improve the maximum lift coefficient and maximum corrected lift-to-drag ratio of the S809 airfoil. Moreover, the power coefficient of the Phase VI wind turbine blade at the low tip speed ratio is greatly enhanced as well. In particular, the maximum lift coefficient and maximum corrected lift-to-drag ratio of the typical S809 CFJ airfoil with adaptive Cμ are improved by 119.7% and 36.2%, respectively. The maximum power coefficient of CFJ blade can be increased by 4.5%, and the power coefficient of CFJ blade can be boosted by 226.7% when the tip speed ratio is 1.52.
ISSN:1996-1073
1996-1073
DOI:10.3390/en14216933