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SUMMARY:Finite Volume Methods for Wave Propagation in Elastic and Poroelas
 tic Materials - Randall J LeVeque\, Applied Mathematics Dept\, University 
 of Washington
DTSTART:20121114T150000Z
DTEND:20121114T170000Z
UID:TALK41593@talks.cam.ac.uk
CONTACT:Louise Mortimer
DESCRIPTION:The Clawpack software (Conservation Law Package\, www.clawpack
 .org) implements high-resolution finite volume methods for linear and nonl
 inear wave propagation problems.  The algorithms are based on\nthe solutio
 n of Riemann problems at the interfaces between grid cells.  This is a nat
 ural approach to solving problems in heterogeneous media with material dis
 continuities\, and can accurately capture reflected and transmitted waves.
   In this talk two applications\nwill be discussed:  1) Nonlinear elastic 
 waves in periodic structures\,where dispersion introduced by reflections a
 t material interfaces leads to the appearance of solitary waves.  2)  Poro
 elastic models\nfor wave propagation in a solid matrix permeated with a fl
 uid\, with application to the study of wave propagation in bone and extrac
 orporeal shock wave therapy (ESWT).\n
LOCATION:Committee Room 213\, Cavendish Laboratory
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