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SUMMARY:Modelling water wave overwash of ice floes - Luke Bennetts (Univer
 sity of Adelaide)
DTSTART:20171003T080000Z
DTEND:20171003T084500Z
UID:TALK83491@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:I will summarise progress towards modelling wave overwash of i
 ce floes\, which (after breakup) is arguably the most important nonlinear 
 phenomenon in wave&ndash\;ice interactions\, and certainly the most striki
 ng one. The phenomenon is unique to wave&ndash\;ice interactions\, occurri
 ng because the small freeboards of ice floes allow waves with relatively m
 odest (non-extreme) amplitudes to wash over their upper surfaces when diff
 erential motion between the floe and the surrounding wave field exists. Ov
 erwash impacts floes thermodynamically\, and dissipates wave energy\, thus
  reducing the distances waves penetrate into the ice-covered ocean. From a
  mathematical modelling perspective\, it is a highly nonlinear phenomenon\
 , meaning it cannot be captured by standard perturbation techniques. I wil
 l present a bespoke overwash model\, along with supporting laboratory expe
 riments and numerical CFD simulations. Applying the methodology to simplif
 ied versions of the problem will be shown to provide insights into model p
 erformance.&nbsp\; <br> <span><br>Co-authors: David Skene (Uni Adelaide)\;
  Michael Meylan (Uni Newcastle)\; Alessandro Toffoli (Uni Melbourne)\; Fil
 ippo Nelli (Swinburne Uni Tech)\; Kevin Maki (Uni Michigan)</span>
LOCATION:Seminar Room 1\, Newton Institute
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