Since its inception in the early 1970s by Daniel Gurney, Gurney flaps have proven to be an effective means of enhancing aerodynamic performance airfoil. Current applications include wind turbine blades, race car spoilers, helicopter rotors, and certain high-lift devices. This study compares influence on flow characteristics effects design parameters flap, namely length position flap a NACA 23,1...

This paper presents a two-dimensional Computational Fluid Dynamics (CFD) analysis on the effect of gurney flap NACA 4312 airfoil in subsonic flow. These numerical simulations were conducted for heights 1.5%, 1.75%, 2% and 3% chord length at fixed Reynold Number, Re (5×105) different angle attack (0o ~16o). ANSYS Fluent commercial software was used to conduct these simulations. The flow consider...