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SUMMARY:Numerical study of solitary waves under  continuous or fragmented 
 ice plates - Emilian I Parau (University of East Anglia)
DTSTART:20170808T090000Z
DTEND:20170808T100000Z
UID:TALK74881@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Nonlinear hydroelastic waves travelling at the surface of an i
 deal&nbsp\;fluid&nbsp\;covered by a thin ice plate are presented. The cont
 inuous ice-plate model is based on the special Cosserat theory of hyperela
 stic shells satisfying Kirchoff&#39\;s hypothesis. Two-dimensional solitar
 y waves are computed using boundary integral methods&nbsp\;and their evolu
 tion in time and stability is analysed using a pseudospectral method based
  on FFT and in the expansion of the Dirichlet-Neuman operator. Extensions 
 of this problem including internal waves and three-dimensional waves will 
 be considered.<br>When the ice-plate is fragmented\, a new model is used b
 y allowing the coefficient of the&nbsp\;flexural rigidity to vary spatiall
 y. &nbsp\;The attenuation of solitary waves is studied by using two-dimens
 ional simulations.<br><br><br>
LOCATION:Seminar Room 1\, Newton Institute
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