Nacelle for aircraft jet engine, has nozzle and noise reduction device that is arranged at downstream end of nozzle, where intermediate flow is provided between rest of one flow and rest of another flow in area downstream of device

摘要

The nacelle (10) has a nozzle (12) and a noise reduction device (14) that is arranged at a downstream end of the nozzle. A flow corresponding to gas from a jet engine circulates around the nozzle, and another flow corresponding to surrounding air flow circulates around an outer side of the nozzle. An intermediate flow (F3) is provided between rest of the former flow and rest of the latter flow in an area downstream of the noise reduction device. The noise reduction device is provided with a channel that takes a portion of the former flow.