Abobakr Al-Ttowi, Akmal Nizam Mohammed. Aerodynamic Analysis of S809 Airfoil: A Stall Validation with RANS k-? Turbulence Models. IJIE [Internet]. 2025 Dec. 31 [cited 2026 Aug. 7];17(8):341-6. Available from: https://journal.uthm.edu.my/index.php/ijie/article/view/24377