page_title: Acoustic liner
hierarchical_section_title: Acoustic liner
caption_attribution_description: English: Graphic representation of an acoustic liner installed on a turbofan engine inlet
context_page_description: Aircraft engines, typically turbofans, use acoustic liners to damp engine noise. Liners are applied on the internal walls of the engine nacelle, both in the intake and by-pass ducts, and use Helmholtz resonance principle for the dissipation of incident acoustic energy.
context_section_description: Aircraft engines, typically turbofans, use acoustic liners to damp engine noise. Liners are applied on the internal walls of the engine nacelle, both in the intake and by-pass ducts, and use Helmholtz resonance principle for the dissipation of incident acoustic energy.
caption: Graphic representation of an acoustic liner installed on a turbofan engine inlet
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