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Module 15. Gas turbine engine

Screech liners in the afterburning jet pipe

  • prevent unstable combustion.
  • prevent cyclic vibrations of large amplitude.
  • acts as noise suppressors.

Jordi asking:

i think the answer is wrong my textbook says that they act as noise suppressors.I quote "These are commonly called as Noise suppression liners or Noise
attenuation mattresses. When installed in the exhaust area these
are also known as Screech liners"

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