This research is funded by the German National Science Foundation (DFG) under the umbrella of the Special Research Activity (Sonderforschungsbereich) Sfb 557, 'Beeinflussung komplexer turbulenter Scherströmungen' at Berlin University of Technology. Additionally it is also supported by the EU-project HiAer (High Level Modelling of High Lift Aerodynamics). The HiAer project is a collaboration between DLR, ONERA, KTH, HUT, TUB, Alenia, EADS Airbus, QinetiQ and FOI. The project is managed by FOI and is partly funded by the European Union (Project Ref: G4RD-CT-2001-00448).