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SUMMARY:Moving loads on ice road: a universal bifurcation mechanism arisin
 g from progressive hydroelastic waves - Zhan Wang (Chinese Academy of Scie
 nces)
DTSTART:20220928T081500Z
DTEND:20220928T090000Z
UID:TALK178394@talks.cam.ac.uk
DESCRIPTION:The problem of forced unsteady water waves under an elastic sh
 eet is a model for waves under ice or under very large floating structures
 . Even though small-amplitude solitary waves are not predicted to exist in
  deep water by standard perturbation analyses\, we find large-amplitude so
 litary waves and explore their crucial role in the forced problem of a mov
 ing load on the elastic cover. We describe the reason for this peculiar wa
 ve phenomenon based on the combination of modeling\, numerical simulation\
 , and multi-scale analysis. Specifically\, the abnormality originates from
  a novel bifurcation mechanism of progressive hydroelastic waves. We show 
 that this bifurcation is universal to some extent in interfacial wave syst
 ems and can be well described by a Whitham-type model with high-order nonl
 inearities.
LOCATION:Seminar Room 1\, Newton Institute
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