Effect of tip vortices on flow over NACA4412 aerofoil with different aspect ratios Mustafa Serdar Genç, Gökhan Özkan, Halil Hakan Açikel, Mehmet Sadık Kiriş and Rahime Yildiz EPJ Web of Conferences, 114 (2016) 02027 Published online: 28 March 2016 DOI: 10.1051/epjconf/201611402027