Computational Aerodynamic Sensitivity Studies for Generic Delta Wing Planforms

Abstract

The current investigations look at the vortical flow and aerodynamic performance of a generic sharp leading edge double delta wing with negative strake. The work is divided into three studies regarding grid refinement, sensitivity of the turbulence model and validation of the numerical approach by use of experimental data. The focus is on the prediction of the vortical flow and aerodynamic values correctly with the most recent numerical methods. For this purpose the prediction of the vortical flow onset progression and interaction is essential and will be discussed. The target configuration is a generic fighter type wing plan form with fuselage provided by Airbus Defence and Space and is part of a national German research cooperation as well as of a NATO research task group on vortex-vortex interaction effects. The present results contributing to the cooperation as a starting point to seal aerodynamic technology gaps for next generation fighter configurations.