Influence of different blade vibration modes on fluid fluctuation in the tip vortex region: an experimental study.
Saved in:
| Title: | Influence of different blade vibration modes on fluid fluctuation in the tip vortex region: an experimental study. |
|---|---|
| Authors: | Ma, Jianlong1 (AUTHOR), Duan, Yafan1 (AUTHOR), Zhao, Ming2 (AUTHOR) ming_zhao@yeah.net |
| Source: | Energy Sources Part A: Recovery, Utilization & Environmental Effects. 2022, Vol. 44 Issue 1, p1478-1494. 17p. |
| Subjects: | Wind turbine blades, Wind power industry, Fluid-structure interaction, Fluids, Wind turbines, Mode shapes |
| Abstract: | Poor understanding of the fluid–structure interaction of a wind turbine blade is a well-known bottleneck in the development of the wind power industry. The degree to which different blade vibration modes influence the fluid fluctuation intensity and the manner of its variation with working conditions remain unknown, which restricts the understanding of fluid–structure interaction and the development of corresponding decoupling methods. To this end, an experiment for synchronously monitoring blade vibration parameters, near-wake flow parameters, and generator output parameters was conducted in the present study. To prevent impacting the characteristics of blade structure and wake flow, an indirect test for identifying the dynamic frequencies was developed. To validate this method, a small wind turbine was utilized to experimentally investigate the influence of different blade vibration modes on the fluid fluctuation in the tip vortex region. The results revealed that the blade vibrations have significant influences on the wake flow fluctuation. They also indicated the differences in the intensities of four types of low-frequency vibrations under static and dynamic conditions. Eventually, the relationship between the intensities of blade vibration modes and those of fluid fluctuation with varying blade rotation speeds was also analyzed. [ABSTRACT FROM AUTHOR] |
| Copyright of Energy Sources Part A: Recovery, Utilization & Environmental Effects is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
Be the first to leave a comment!
