High Lift Aircraft Configuration with Engines
The DLR ALVAST configuration is used for aerodynamic investigations of new engines with high bypass ratios at cruise and low speed flow conditions. The ALVAST exists as a full and half model and has been tested extensively in DNW and ONERA wind tunnels in the European projects ENIFAIR and AIRDATA.
The main objective has been to understand engine integration aspects as well as high lift flow phenomena involving the slats and flaps. A hybrid grid was generated using CENTAUR with prisms in the boundary layer and tetrahedra away from the aircraft.
ALVAST images courtesy of DLR.