University of Cambridge > Talks.cam > Waves Group (DAMTP) > The critical layer in quadratic-shear boundary layers over acoustic linings

The critical layer in quadratic-shear boundary layers over acoustic linings

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  • UserRenan Liupekevicius Carnielli, University of Warwick
  • ClockTuesday 11 December 2018, 10:30-11:30
  • HouseCMS, MR15.

If you have a question about this talk, please contact Matthew Priddin.

Acoustics within mean flows are governed by the linearized Euler equations, which possess a singularity wherever the local mean flow velocity is equal to the phase speed of the disturbance. Such locations are termed critical layers, and are usually ignored when estimating the sound field, with their contribution assumed to be negligible. A thorough mathematical analysis of the critical layer for a linear boundary layer over an acoustic lining has been given by Brambley. We present the investigations of this problem with the same mathematical arguments for a much less artificial quadratic boundary layer profile.

This talk is part of the Waves Group (DAMTP) series.

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