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SUMMARY:Gunilla Kreiss (Uppsala University)
DTSTART:20241104T121500Z
DTEND:20241104T130000Z
DTSTAMP:20260417T003635Z
UID:cam/45
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/cam/45/">Cut
  FEM meets Finite Differences</a>\nby Gunilla Kreiss (Uppsala University) 
 as part of CAM seminar\n\nLecture held in MV:L14.\n\nAbstract\nThere is a 
 cut-FEM methodology with ghost penalty stabilization\, which can be applie
 d to hyperbolic conservation laws. This technique is useful when consideri
 ng problems with complex geometric features. Explicit time-stepping is pre
 ferable for hyperbolic problems\, but even the standard DG and CG metods s
 uffer from increasingly severe time-step restrictions as the order of the 
 method increases. For high order finite difference methods the time-step r
 estriction is not at all as severe. In this talk we will explore possibili
 ties of applying the cut-FEM methodology to finite difference methods. The
  goal is to formulate a finite difference method that can be seen as a Gal
 erkin method. Applying the cut-FEM methodology will then yield an immersed
  boundary finite difference metod.\n
LOCATION:https://researchseminars.org/talk/cam/45/
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