| 摘要 |
<p>A gas turbine engine (10) comprising a fan (14) and an acoustic absorption intake and/or fan case liner (40). The liner (40) comprises at least four liner sections (42) demarcated by circumferentially spaced inhomogeneities (50). The inhomogeneities (50) cause scattering of a fan tone acoustic field when the gas turbine engine (10) is in use.</p> |
