Structural Characteristics of Wind Turbines with Different Blade Materials Under Yaw Condition

Huanran Guo, Liru Zhang (), Jing Jia, Ding Du, Anhao Wei and Tianhao Liu
Additional contact information
Huanran Guo: College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Liru Zhang: College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Jing Jia: College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Ding Du: College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Anhao Wei: College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
Tianhao Liu: College of Energy and Power Engineering, Inner Mongolia University of Technology, Hohhot 010051, China

Energies, 2025, vol. 18, issue 21, 1-19

Abstract: The uneven distribution of airflow on the blade surface of a yaw wind turbine triggers a complex non-constant flow, resulting in turbine flow field operation disorder, which, in turn, affects the structural field. In view of the different degrees of influence of different blade materials on the structural characteristics of a wind turbine, a numerical simulation of the flow field and structural field of the horizontal-axis wind turbine under different yaw conditions is carried out by using the fluid–solid coupling method to quantitatively analyse the degree of influence of the material on the structural characteristics of the wind turbine. The results show that the average velocity of the wake cross-section shows a trend of decreasing, then increasing, and then stabilising at all yaw angles. The larger the yaw angle, the wider is the vortex structure dispersion. As the wake develops downstream, the turbulence intensity is shown to decrease and then increase, and the yaw perturbation exacerbates the turbulence disorder in the wake flow field. Along the wind turbine blade spreading direction, the blade deformation phenomenon is significant. The yaw angle increases, the wind turbine blade deformation increases, and the maximum blade stress first increases and then decreases. At a 15° yaw angle, the airflow on the blade surface is more easily separated, and vortices are formed in the vicinity, which impede the airflow in the boundary layer and lead to a reduction in the velocity in the boundary layer in this region. The minimum deformation and maximum stress of the three materials under a 15° yaw angle indicate that the blades are more capable of resisting external deformation under this condition, so 15° yaw is the best operating condition for the wind turbine. This paper employs different materials to quantitatively analyse the extent to which structural characteristics influence wind turbine performance. The findings from this research can provide valuable insights for optimising wind turbine designs.

Keywords: horizontal-axis wind turbine; structural characteristics; fluid–solid coupling; yaw; blade material (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/18/21/5558/pdf (application/pdf)
https://www.mdpi.com/1996-1073/18/21/5558/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:18:y:2025:i:21:p:5558-:d:1777037

Access Statistics for this article

Energies is currently edited by Ms. Cassie Shen

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().