An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains

Authors

Zifeng Yang, Wright State University - Main Campus
Ahmet Ozbay, Iowa State University
Partha Sarkar, Iowa State University
Hui Hu, Iowa State University

Document Type

Conference Proceeding

Publication Date

1-1-2012

Identifier/URL

42938039 (Pure)

Abstract

An experimental study was conducted to investigate the interferences of wind turbines sited over hilly terrains in order to elucidate underlying physics to explore/optimize design paradigms of wind turbines sited over complex terrains for higher power yield and better durability. The experiments were conducted in a large wind tunnel with of wind turbine models sited over a flat terrain (baseline case) and a 2D-ridge with non-homogenous atomospheric boundary layer winds. In addition to measuring dynamic wind loads (both forces and moments) and the power outputs of the wind turbine models, a high-resolution digital Particle Image Velocimetry (PIV) system was used to conduct detailed flow field measurements to quantify the flow characteristics of the surface winds and wake interferences among multiple wind turbines over flat (baseline case) and complex terrains. The detailed flow field measurements were correlated with the wind load measurements and power outputs of the wind turbine models to elucidate the underlying physics associated with turbine power generation and fatigue loads acting on the wind turbines.

Comments

Presented at the 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, Jan 9 2012 - Jan 12 2012

Repository Citation

Yang, Z., Ozbay, A., Sarkar, P., & Hu, H. (2012). An Experimental Investigation on the Wake Interference of Wind Turbines Sited Over Complex Terrains. .
https://corescholar.libraries.wright.edu/mme/607

DOI

10.2514/6.2012-1069