Al-Qadisiyah Journal for Engineering Sciences

Enhancement of airfoil performance by rotating cylinder

Document Type : Research Paper

Authors

Mohammed Sadeq Kadhim
Dhafer A. Hamza

Department of Mechanical Engineering, Collage of Engineering, University of Al-Qadisiyah, Ad-Diwaniyah, Iraq.

https://doi.org/10.30772/qjes.v14i2.748
Abstract
This study used a NACA 6409 smooth wing section. Its performance is compared to an enhanced design incorporating a revolving cylinder on the upper airfoil surface. The boundary conditions for the present work were Reynolds (105), and the attack angles were (0,2,4,6,8,10,12,14,16). A turbulence model was developed (SST K-), one of the aerodynamics models. This model is well-suited for sensing flow near a wall. The cylinder was evaluated at three positions (25,50,75) percent of the chord's length. The results indicated that position (25 percent C) was optimal, as it resulted in a 24.45 percent increase in lift coefficient at the angle of attack (12). And when the results were compared to those of other studies, they revealed a significant agreement.

Keywords

Airfoil
Enhancement
Rotating Cylinder
Performance
NACA6409
Al-Qadisiyah Journal for Engineering Sciences
Volume 14, Issue 2
Spring 2021
Pages 89-94

  • Receive Date 18 January 2021
  • Revise Date 12 March 2021
  • Accept Date 15 May 2021

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