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SUMMARY:Alexandre Ern (Université Paris-Est\, CERMICS \, ENPC)
DTSTART:20210209T060000Z
DTEND:20210209T070000Z
DTSTAMP:20260423T052759Z
UID:CMWebinar/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CMWebinar/1/
 ">Hybrid high-order methods for the wave equation on unfitted meshes</a>\n
 by Alexandre Ern (Université Paris-Est\, CERMICS \, ENPC) as part of Aust
 ralian Seminar on Computational Mathematics\n\n\nAbstract\nWe design and a
 nalyze an unfitted hybrid high-order (HHO) method for the acoustic wave eq
 uation. The wave propagates in a domain where a curved interface separates
  subdomains with different material properties. The key feature of the spa
 ce discretization method is that the interface can cut more or less arbitr
 arily through the mesh cells. We address both the second-order formulation
  in time of the wave equation and its reformulation as a first-order syste
 m. For explicit time-stepping schemes\, we study the CFL condition and obs
 erve that the unfitted approach combined with local cell agglomeration lea
 ds to a comparable condition as when using fitted meshes.\n
LOCATION:https://researchseminars.org/talk/CMWebinar/1/
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