Blade with tangential jet production on the profile

摘要

The blade has a cavity connected to a fluid supply. A nozzle-type design outlet opening is provided for connecting the cavity to a flow path, essentially inclined in a direction of a main flow, and longitudinally extending to a corresponding surface of the blade. A separator is provided in a specific area of the outlet opening for dividing and deflecting a supplied fluid flow before the fluid flow issues as tangential jet onto the surface of the blade.