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SUMMARY:Homogenisation of the boundary condition for scattering by perfora
 ted plates - Shiza Naqvi (University of Cambridge)
DTSTART:20220526T100000Z
DTEND:20220526T110000Z
UID:TALK174728@talks.cam.ac.uk
CONTACT:Alistair Hales
DESCRIPTION:The effects of small apertures perforating a thin plate and th
 e appropriate homogenised boundary condition one should apply when such a 
 plate is placed in flow is considered. Specific attention is placed on a b
 oundary condition applicable to acoustic scattering by an incident plane w
 ave. The perforated plate is both modelled explicitly via Mathieu function
  collocation and the impact of appropriate homogenisation on the far-field
  scattered noise is investigated via use of the Wiener-Hopf technique. Bot
 h uniformly sized apertures and non-uniformly sized apertures are consider
 ed.
LOCATION:MR5
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