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SUMMARY:Upscaling of the wave equation in permeable materials with active 
 inner sources - Rodolfo Venegas (University Austral of Chile)
DTSTART:20230526T080000Z
DTEND:20230526T084500Z
UID:TALK198934@talks.cam.ac.uk
DESCRIPTION:This talk discusses the upscaling of the wave equation in perm
 eable materials with active inner sources.The two-scale method of homogeni
 sation is used to establish the macroscopic description of wavepropagation
  in\, and sound emission by\, multiscale metamaterials and porous media fe
 aturing differenttypes of active inner sources. The investigated types of 
 sources correspond to forcing terms in theequations of conservation of mom
 entum\, mass\, and energy. This talk pays particular attention to howinner
  sources and different diffusion processes can be engineered to control ac
 oustic waves\, provides asynthetic view of the role of inner sources on wa
 ve propagation in and emission of sound by permeablemedia\, and discusses 
 possible ways of tackling the challenging problem of modelling the propaga
 tionand emission of high-frequency acoustic waves in the investigated clas
 ses of materials.
LOCATION:Seminar Room 1\, Newton Institute
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