REDUCTION OF FRICTIONAL LOSSES IN THE REGION OF BOUNDARY LAYERS ON SURFACES, AROUND WHICH A FLUID FLOWS

摘要

The invention relates to an aerodynamic body with a plurality of nozzles for throttling a fluid flow to be removed by suction through the nozzles (1) in a self- regulated fashion. The invention also pertains to an aircraft that is equipped with a suction system of this type. Lastly, the invention pertains to the utilization of a plurality of the aforementioned throttling nozzles (1) in order to reduce the frictional losses on a surface (8), around which a fluid flows. The aerodynamic body according to the invention comprises a plurality of throttling nozzles (1) with a throttle section (5) that is defined by an inlet (2) and an outlet (3), wherein the interior wall of this throttle section is realized in such a way that the effective flow cross section Aw is reduced in a self-regulated fashion due to the creation of turbulences on the interior wall of the throttle section (5) as the pressure differential between the inlet (2) and the outlet (3) of the throttle section (5) increases.