Interior Flow Simulation of Suction Chambers for HLFC Profiles

For a simplified but effective suction chamber concept for hybrid laminar flow control by boundary-layer suction, which is investigated on a vertical tail, the velocity distribution inside suction chambers is simulated. Within the current study, CFD simulations of the flow inside these chambers are carried out by the DLR FLOWer code to predict this velocity as well as the pressure distribution inside the chambers. Variations of the suction pressure and the tap-distance are carried out.