, Chair of Fluid Mechanics and Institute of Aerodynamics, RWTH Aachen University
HPC Platform used:
Hazel Hen and Hawk (HLRS), JUQUEEN (JSC)
Local Project ID:
GCS-Aflo (HLRS), chac32 (JSC)
A new active surface actuation technique to reduce the friction drag of turbulent boundary layers is applied to the flow around an aircraft wing section. Through the interaction of the transversal traveling surface wave with the turbulent flow structures, the skin-friction on the surface can be considerably reduced. Highly-resolved large-eddy simulations are conducted to investigate the influence of the surface actuation technique on the turbulent flow field around an airfoil at subsonic flow conditions. The active technique, which previously was only tested in generic scenarios, achieves a considerable decrease of the airfoil drag.