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Surface contamination effects on the 2-D and unsteady wind turbine blade section performance

Soltani, M. R ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: 2007
  3. Abstract:
  4. A series of unsteady low speed wind tunnel tests on a section of a 660 Kw wind turbine blade under construction were conducted to examine the effects of distributed surface contamination on its performance characteristics. Our data shows that the airfoil is very sensitive to the applied surface roughness. Results show that contamination decreases static maximum lift coefficient more than 40 percent. In the dynamic test this effect is the same and is about 38 percent. Contamination decreases the width of the dynamic diagrams loop such and leads to the smooth stall on the airfoil
  5. Keywords:
  6. Airfoils ; Sensitivity analysis ; Surface roughness ; Testing ; Turbomachine blades ; Wind tunnels ; Static maximum lift coefficient ; Surface contamination ; Unsteady low speed wind tunnel tests ; Wind turbine blade section performance ; Wind turbines
  7. Source: 25th AIAA Applied Aerodynamics Conference, 2007, Miami, FL, 25 June 2007 through 28 June 2007 ; Volume 2 , 2007 , Pages 795-801 ; 10485953 (ISSN) ; 1563478986 (ISBN); 9781563478987 (ISBN)