Contamination effects on the performance of a wind turbine blade section

Soltani, M. R ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. Publisher: 2006
  3. Abstract:
  4. A series of low speed wind tunnel tests on a section of a 660 Kw wind turbine blade were conducted to examine the effects of distributed surface contamination on its performance. The airfoil was a section of a wind turbine blade under construction. The performance of the section was measured in the following conditions: 1. Clean airfoil 2. Two types of zigzag roughness 3. Strip tape 4. Distributed contamination roughness Our preliminary data shows that the airfoil is very sensitive to the applied surface roughness. For the contamination model the roughness, 0.5mm height, is distributed over the entire upper surface of the airfoil. By putting the contamination roughness on the airfoil the maximum lift coefficient decreased up to 37% while the stall angle increased slightly. In contrast to the clean model for the roughed airfoil the maximum lift coefficient increases as the Reynolds number increases. The effect of zigzag roughness and strip tape are less than that of the contaminated one
  5. Keywords:
  6. Airfoils ; Reynolds number ; Surface roughness ; Wind tunnels ; Wind turbines ; Contamination effects ; Maximum lift coefficients ; Wind turbine blades ; Turbomachine blades
  7. Source: 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings, San Francisco, CA, 5 June 2006 through 8 June 2006 ; Volume 4 , 2006 , Pages 2801-2805 ; 1563478153 (ISBN); 9781563478154 (ISBN)
  8. URL: https://arc.aiaa.org/doi/book/10.2514/MJTHT06