Aeroelastics for Elastically Oscillating Wings Using the Virtual Grid Deformation Method

A new, efficient, and at the same time most precise calculation method for unsteady aerodynamics is presented in this paper. It is called the "virtual grid deformation" method. The time-dependent grid deformation is observed virtually and without restriction, meaning that this method is also valid for high deflections and large amplitudes, respectively. This method is applicable to the conservation laws of fluid flows which are solved by a finite volume scheme and by a time-stepping procedure. Numerical results of a standard wing in steady and unsteady flow are compared with available measurements