Turbomachine cowl having noise suppression tabs

摘要

The cowl (14, 16) has a number of repeated patterns (26) disposed circumferentially at a trailing edge (14a). Each pattern is asymmetrical about a midplane of the pattern passing through a longitudinal axis (X-X) of the cowl. Intensity of two generated longitudinal vortices is different at the level of each pattern and the vortices are no longer compensated throughout the circumference of the cowl. Each pattern has a portion radially inclined towards the interior of the cowl and another portion radially inclined towards the exterior of the cowl. An independent claim is also included for a turbomachine comprising a nozzle.