Open Access
ARTICLE
Influence of the Blade Bifurcated Tip on the Correlation between Wind Turbine Wheel Vibration and Aerodynamic Noise
Baohua Li1, Yuanjun Dai1,2,*, Jingan Cui1, Cong Wang1, Kunju Shi1
1
Mechanical College, Shanghai Dianji University, Shanghai, 201306, China
2
College of Energy Engineering, Xinjiang Institute of Engineering, Urumqi, 830091, China
* Corresponding Author: Yuanjun Dai. Email:
Fluid Dynamics & Materials Processing 2023, 19(12), 3033-3043. https://doi.org/10.32604/fdmp.2023.029583
Received 27 February 2023; Accepted 05 May 2023; Issue published 27 October 2023
Abstract
To reduce the vibration and aerodynamic noise of wind turbines, a new design is proposed relying on a blade with
a bifurcated apex or tip. The performances of this wind turbine wheel are tested at the entrance of a DC (directaction) wind tunnel for different blade tip angles and varying centrifugal force and aerodynamic loads. The test
results indicate that the bifurcated apex can reduce the vibration acceleration amplitude and the vibration frequency of the wind wheel. At the same time, the bifurcated apex can lower the maximum sound pressure level
corresponding to the rotating fundamental frequency of the wind wheel. According to all these findings, the tip
angle of the bifurcated apex is the main factor enhancing the effect of the modification.
Keywords
Cite This Article
APA Style
Li, B., Dai, Y., Cui, J., Wang, C., Shi, K. (2023). Influence of the blade bifurcated tip on the correlation between wind turbine wheel vibration and aerodynamic noise. Fluid Dynamics & Materials Processing, 19(12), 3033-3043. https://doi.org/10.32604/fdmp.2023.029583
Vancouver Style
Li B, Dai Y, Cui J, Wang C, Shi K. Influence of the blade bifurcated tip on the correlation between wind turbine wheel vibration and aerodynamic noise. Fluid Dyn Mater Proc. 2023;19(12):3033-3043 https://doi.org/10.32604/fdmp.2023.029583
IEEE Style
B. Li, Y. Dai, J. Cui, C. Wang, and K. Shi "Influence of the Blade Bifurcated Tip on the Correlation between Wind Turbine Wheel Vibration and Aerodynamic Noise," Fluid Dyn. Mater. Proc., vol. 19, no. 12, pp. 3033-3043. 2023. https://doi.org/10.32604/fdmp.2023.029583