Turbomachine nozzle cowl, and corresponding nozzle and turbomachine

摘要

The bonnet (14) has jet noise reduction units (26) arranged in extension a trailing edge (14a) of the bonnet and circumferentially spaced to each other. Each unit has a triangular contour with a base (26a) formed by a part of the edge, and has an apex (26b) spaced towards downstream of the base and connected to the base by two sides (26c). Each side is connected to the edge based on a bent contour of each side with a bend radius (R) higher than or equal to that of a bent contour of the apex. The bent contour of each side has an inflection point (28) at a tangent (30) parallel to the base.