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SUMMARY:Diffraction of acoustic waves by multiple semi-infinite arrays - M
 atthew Nethercote
DTSTART:20230216T140000Z
DTEND:20230216T150000Z
UID:TALK197518@talks.cam.ac.uk
CONTACT:Shiza Naqvi
DESCRIPTION:This talk considers a multiple wave scattering problem with mu
 ltiple independent semi-infinite periodic arrays of point scatterers. This
  generalises a recently published article where we considered two arrays a
 rranged to form a wedge interface. The solution is obtained in terms of co
 upled systems of equations\, one for each of the arrays. All of these syst
 ems are solved using the discrete Wiener--Hopf technique and the resulting
  matrix system can be solved by matrix inversion or by using an effective 
 iterative numerical procedure. In the end\, we can compute the interaction
  between thousands of scatterers from the multiple arrays. In particular\,
  we will look at some special arrangements of arrays (including the wedge 
 interface)\, highlight the accuracy of the method by comparing with result
 s from COMSOL and raise some questions on how resonance is affected betwee
 n independent arrays.
LOCATION:MR14
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