Numerical investigation of flow on NACA4412 aerofoil with different aspect ratios Hacımurat Demir, Mustafa Özden, Mustafa Serdar Genç and Mücahit Çağdaş EPJ Web of Conferences, 114 (2016) 02016 Published online: 28 March 2016 DOI: 10.1051/epjconf/201611402016