FLOW IN THE WAKE OF WIND TURBINES: TURBULENCE SPECTRAL ANALYSIS BY WIND TUNNEL TESTS

Authors

  • Adrián Roberto Wittwer Facultad de Ingeniería, Universidad Nacional del Nordeste, Resistencia, Argentina.
  • Rodrigo Dorado Universidade Federal de Rio Grande do Sul, Porto Alegre, RS
  • Gervásio Annes Degrazia Universidade Federal de Santa Maria
  • Acir Mércio Loredo-Souza Universidade Federal de Rio Grande do Sul, Porto Alegre, RS
  • Bardo Ernst Josef Bodmann Universidade Federal de Rio Grande do Sul, Porto Alegre, RS

DOI:

https://doi.org/10.5902/2179460X19850

Keywords:

Wind turbine. Turbulent wake. Reduced scale models.

Abstract

The interaction between the incident wind and wind turbines in a wind farm causes mean velocity deficit and increased levels of turbulence in the wake. The turbulent flow is characterized by the superposition of the wind turbine wakes. In this work, the technique of turbulence spectral evaluation to reduce scale models in a boundary layer wind tunnel is presented, and different measurements of velocity fluctuations are analyzed. The results allow evaluating the spectrum configuration at different frequency ranges and the differences of the spectral behavior between the incident wind and the turbine wake flow.

 

 

Downloads

Download data is not yet available.

Published

2016-07-20

How to Cite

Wittwer, A. R., Dorado, R., Degrazia, G. A., Loredo-Souza, A. M., & Bodmann, B. E. J. (2016). FLOW IN THE WAKE OF WIND TURBINES: TURBULENCE SPECTRAL ANALYSIS BY WIND TUNNEL TESTS. Ciência E Natura, 38, 46–52. https://doi.org/10.5902/2179460X19850