Large Eddy Simulation of parallel blade-vortex interaction on low Reynolds airfoil

Abstract

In the present work the Large Eddy Simulation approach has been used to investigate the parallel interaction between a vortex and a SD7003 airfoil at angle of attack equal to 8_ and Reynolds number 60000. The numerical code is based on the Local Discontinuous Galerkin finite element method associated with sophisticated anisotropic subgrid scale model. During the simulation, the polynomial degree has been adapted locally in space and dynamically in time on the base of the structure function indicator suitable for LES. The simulation shows the interaction with the vortex which stronghly affects the transitional separation on the airfoil and the force coefficients.