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Numerical aerodynamic analysis of a damaged airfoil

Rasi Marzabadi, F ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. Publisher: 2007
  3. Abstract:
  4. The flow on a section of NACA 641-412 airfoil with right and inverse triangle shaped damage was numerically investigated. The flow through the damage was driven by the pressure differential between the upper and lower wing surfaces. The results showed that for both damage shapes the flows could be categorized as weak, transitional or strong jets. For both damage cases the jet exited from the rear of the damage and its size was determined by the width of the rear part of the hole. Generally, when compared with an undamaged model, increasing incidence for a damaged model resulted in increased loss of lift coefficient, increased drag coefficient and more negative pitching moment coefficient. This effect is more sever for the right triangle case
  5. Keywords:
  6. Inverse triangle shaped damage ; Lower wing surfaces ; Pitching moment ; Aircraft models ; Airfoils ; Drag ; Jets ; Aerodynamics
  7. Source: 25th AIAA Applied Aerodynamics Conference, 2007, Miami, FL, 25 June 2007 through 28 June 2007 ; Volume 2 , 2007 , Pages 1120-1127 ; 10485953 (ISSN) ; 1563478986 (ISBN); 9781563478987 (ISBN)