Part of #Numerical Analysis of Pressure Distribution and Wake Region Around a Rectangular Wing in Ground Effect# :
Publishing year : 2015
Conference : New findings in aerospace and related sciences
Number of pages : 11
Abstract: The physics of a flow around a wing is a topic that can be investigated for the conceptual design of a wing in a ground effect. In this study, numerically, the pressure distribution around a rectangular wing with a NACA 6409 airfoil section, as well as the velocity and turbulence distributions in the wake region after the trailing of the wing, were examined numerically. Numerical simulations were executed with respect to different angles of attack in ground effect. The flow field in the physical domain around the wing surface was verified with a realizable k-turbulent model. The numerical results of the rectangular wing were verified with the experimental data from the wind tunnel. The flow structures around the rectangular wing had some variation versus the angle of attack. It was predicted that the pressure distribution on the lower surface and the suction effect on the wing's upper surface were stronger for a higher angle of attack. Additionally, the velocity defect and turbulent intensity in the wake region were larger behind the wing at higher angle.