Finite element approximation of turbulent flow applied for simulation of fluid structure interactions

This paper is concerned with the numerical approximation of a fluid-structure interaction problem. The interaction of turbulent flow with flexibly supported airfoil with an aileron is considered, where the non-linearities due to the high deflection occuring for aeroelastic systems after the loss of their aeroelastic stability are involved. The motion of the airfoil is described with the aid of a system of ordinary differential equations for two or three degrees of freedom coupled with the Reynolds averaged Navier-Stokes system of equations completed by the k - omega turbulence model. Numerical results are shown.