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ACOUSTIC TREATMENT DEVICE FOR TURBINE AND COMBUSTION NOISES
ACOUSTIC TREATMENT DEVICE FOR TURBINE AND COMBUSTION NOISES
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机译:汽轮机和燃烧噪声的声学处理装置
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摘要
An acoustic treatment device for an internal primary ejection duct from a turbojet pod, including an upstream zone and a downstream zone relative to an airflow direction in the primary ejection duct, the upstream and downstream zones being located on each side of a separating wall with a first face on the side of the upstream side and a second face on the side of the downstream side. The separating wall is a micro-porous wall and the face of the separating wall located on the side of the downstream side is covered by a honeycomb structure to attenuate high frequency acoustic waves. Such a device may find application to treatment of combustion and turbine noises.
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