Investigation of Eddy Viscosity Turbulence Models on the Vortical Flow over the Highly Swept and Low Aspect Ratio Wing

A numerical investigation on a supersonic aircraft configuration at high alpha and low speed flight conditions has been performed using the Reynolds-Averaged Navier-Stokes Equations. The aerodynamic characteristics of the supersonic aircraft were strongly influenced by the vortical flow behaviors that formed over the wing and leading edge flaps. The paper is focused on the rotation curvature (RC) correction which can play an important role in the accurate simulation of the vortex dominant flow field. The RC correction effects were investigated using two eddy viscosity turbulence models (SA and SST). Moreover, these results were compared with simulations using the EARSM and experimental results. In results, it is found that small scaled vortices were detected by the RC correction. These trends are similar with the EARSM results. Furthermore, from the adjustment of the strength of the RC effects, the computational solutions were in good agreement with experimental results.