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Surface Roughness Effects on Turbulent Boundary Layer Structure of NACA 0026 Airfoil

  • Unique Paper ID: 158962
  • Volume: 9
  • Issue: 11
  • PageNo: 79-81
  • Abstract:
  • An ongoing investigation of the effect of riblets on turbulent boundary layer behaviour over a rough surface applied to the NACA 0026 airfoil's surface is the subject of this project. We find that riblets have a significant impact on the boundary layer and turbulence intensity profiles due to their size and distribution. The greater the wall roughness, the greater the wake strength when exposed to riblets. The roughness of the wall has a significant impact on the fraction of Reynolds shear stress that each event generates. Fluctuating flow fields in the turbulent boundary layer may be measured using Particle Image Velocimetry (PIV). The smooth-wall tendency has reversed itself. The Particle Image Velocimetry (PIV) technique is used to measure the turbulent boundary layer's fluctuating flow field. Turbulence characteristics may be dramatically altered by adding a small strip of diverse ordered roughness features to the leading edge of an airfoil.
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  • ISSN: 2349-6002
  • Volume: 9
  • Issue: 11
  • PageNo: 79-81

Surface Roughness Effects on Turbulent Boundary Layer Structure of NACA 0026 Airfoil

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