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Design, Aerodynamic analysis and Fabrication of Eppler-61 Airfoil ( camber = 10.03% of chord

  • Unique Paper ID: 146463
  • Volume: 4
  • Issue: 12
  • PageNo: 704-707
  • Abstract:
  • The equations for fluids are quite complex and can be difficult to solve, especially if the geometry of a problem is intricate. To overcome such difficulties, Computational Fluid Dynamics (CFD) has been constantly developed over the past few decades. A wooden modified Eppler-61 airfoil is fabricated with fifteen static pressure taps for measurement of surface pressure. The main objective of this investigation is to analyse the flow behaviour around the airfoil body and to calculate the performance coefficients at Reynolds Number 1.2×105 and angle of attack from -100 to 150. The section-lift and drag coefficient for an asymmetric airfoil are obtained by analysing the measured pressure distribution at pressure taps on the airfoil surface. A Multi-tube manometer is used to monitor the surface pressure and provide a visual display of the dynamic changes associated with varying angle of attack. The experimental data for modified Eppler-61 from wind tunnel is validated with simulations computed in the software FLUENT. The lab data and simulations are performed at various angles of attack and lift and drag coefficients are computed. The simulations in FLUENT yielded the best correlation to the experimental data with the inviscid mode and had the overall best performance in determining the lift and drag coefficients. Lift increases as the angle of attack increases between -10 and +15 degrees and at +10 degrees maximum lift is generated. If the angle of attack is increased, any further drag becomes the dominant factor and the wing enters the stall mode.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 4
  • Issue: 12
  • PageNo: 704-707

Design, Aerodynamic analysis and Fabrication of Eppler-61 Airfoil ( camber = 10.03% of chord

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