TY - JOUR AU - Samion, Siti Ruhliah Lizarose AU - Mat Ali, Mohamed Sukri PY - 2021/01/18 Y2 - 2024/03/28 TI - Aerodynamic Noise Measurement In Anechoic Wind Tunnel of Rod-Airfoil With Leading Edge Serrations JF - Journal of Advanced Research in Fluid Mechanics and Thermal Sciences JA - J. Adv. Res. Fluid Mech. Therm. Sc. VL - 47 IS - 1 SE - Articles DO - UR - https://akademiabaru.com/submit/index.php/arfmts/article/view/2232 SP - 97-107 AB - <p>Turbulent flow interaction with the leading edge of an airfoil generates a well-known leading edge noise. The present work is an experimental investigation of reducing the leading edge noise by adapting serrations on the leading edge of NACA0012 airfoil. A rod is placed upstream of the airfoil to magnify the turbulence flow-leading edge interaction. Locations and the size of the serrations are two parameters being investigated for the noise reduction. The study found that a noise reduction up to 3.5 dB is obtained when the size of the serration is wider. Additionally, more sound reduction can be obtained when the angle of attack is increased.</p> ER -