Abstract
Gurney flap (GF) is well-known that one of the most attractive plain flaps because of the simple configuration and actually effective in improving lift of the airfoil. Many studies were conducted but the effects of GF on the various airfoil types need to be further investigated. This study aimed to clarify the effect of GF in case of the Supercritical airfoil, SC-0414 airfoil. The Ansys Fluent software is used to perform the flow simulations. The result in airfoil baseline is compared with the experiment result obtaining from wind tunnel testing. The flow simulations focus on analyzing the lift coefficient when increasing the height of Gurney flaps. The velocity of the simulations, as well as the experiment is U = 12 m/s and the Reynolds number Re is 1.6 × 105. In the smoke wind tunnel, the flow field are clearly observed by smoke lines. The lift coefficient results of the flow simulations show the similar qualitative trend as the conventional airfoil model with Gurney flap.
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