Disclosed is a turbomachine (1) characterized in that it comprises: - a housing (7) exhaust, comprising a plurality of arms (10), the space between the arms defining the apertures (13), - at least one duct (2), ○ configured to take at one of its ends (3) a flow of compressed air, ○ the other end of the duct (2) being connected to at least one opening (13) of the housing ( 7) exhaust, to insert the withdrawn air stream, said air stream having, when it is inserted into the opening (13), a Mach number less than or equal to 0.5.