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A STUDY OF REDUCTION OF FLOW SEPERATION IN AEROFOIL USING DIMPLES

  • Unique Paper ID: 149040
  • Volume: 6
  • Issue: 10
  • PageNo: 247-254
  • Abstract:
  • The present work describes change in aerodynamic characteristics of an airfoil by applying certain surface modifications in form of dimplesThe main objective of aircraft aerodynamics is to enhance the aerodynamic characteristics and maneuverability of the aircraft. This enhancement includes the reduction in drag and stall phenomenon. The airfoil which contains dimples will have comparatively less drag than the plain airfoil. Introducing dimples on the aircraft wing will create turbulence by creating vortices which delays the boundary layer separation resulting in decrease of pressure drag and also increase in the angle of stall. In addition, wake reduction leads to reduction in acoustic emission. In the present work, a car model with different dimple geometry is simulated using k-ε turbulence modeling to determine its effect to the aerodynamics performance. Overall, the results show that the application of dimples manages to reduce the drag coefficient of the car model.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 6
  • Issue: 10
  • PageNo: 247-254

A STUDY OF REDUCTION OF FLOW SEPERATION IN AEROFOIL USING DIMPLES

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