TY - JOUR AU - Abdul Hakim, Muhammad Syahmi AU - Ab Wahid, Mastura AU - Othman, Norazila AU - Mat, Shabudin AU - Mansor, Shuhaimi AU - Dahalan, Md. Nizam AU - Wan Ali, Wan Khairuddin PY - 2020/12/01 Y2 - 2024/03/28 TI - The Effects of Reynolds Number on Flow Separation of Naca Aerofoil 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/2229 SP - 56-68 AB - <p>The purpose of this study is to investigate the flow separation above UTM 2D Airfoil at three different Reynolds numbers which are 1 × 10 &nbsp;, 1.5 × 10 &nbsp;and 2 × 10 &nbsp;using pressure distribution method and flow visualization. The experiment was conducted in UTM-LST (Low Speed Tunnel). The pressure distribution is done on three different wing span, which are 40%, 50% and 70%m of span and was measured and plotted to observe the flow characteristic at angle of attack from 0° to 35° for all three different Reynolds numbers. The flow visualization method was done at 10m/s, 20m/s and 30m/s airspeed from 0° to 18°. It is concluded that the Reynolds number of 1 × 10 &nbsp;separates at 16°; Reynolds number of 1.5 × 10 &nbsp;separates at 18° and Reynolds number of 2 × 10 &nbsp;separates at 20°.</p> ER -