Computation of Airfoil-Vortex Interaction Using a Vorticity-Preserving Scheme

Abstract

We recently proved that a dissipative residual-based scheme of second-order accuracy is vorticity-preserving for the compressible Euler equations. In the present paper, this scheme is extended to curvilinear grids and applied to the computation of the interaction between a Scully vortex and a NACA0012 airfoil at a Mach number of 0.5. A grid convergence study and a comparison with a conventional scheme and with experimental measurements are presented. The new scheme shows a faster grid convergence, especially for the vortex trajectories and deformations during the interaction.