The influence of frictional Chezy contributions on the shoreline motion.

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Event details

Date 27.03.2013
Hour 12:1513:00
Speaker Prof. Maurizio Brocchini, DICEA Universit`a Politecnica delle Marche - Ancona, I,  invited professor at ENAC-IIC-LHE
Location
GC B3 30
Category Conferences - Seminars
The dynamics of wave-forced flows near the shoreline is illustrated and discussed, with specific focus on the influence that frictional Chezy contributions have on the shoreline motion  itself [1].  An asymptotic analysis,  valid  for vanishing  water  depths,  reveals that the  use of such  a term  leads  to  a non-receding  motion  of the  shoreline. This phenomenon  is induced  by a thin  layer  of water  which,  because  of frictional  forces, remains  on the  beach  and  keeps it wet seaward  of the  largest  run-up. However, the dynamical  influence of such a frictional  layer  of water  on the  global wave motion  is very weak and practically negligible for most of the swash zone flow. The presence of a non-receding  shoreline  has called to some clarifications  on the  role of some ad-hoc tools used in numerical  models for the prediction  of the wet/dry interface.

Practical information

  • General public
  • Free
  • This event is internal

Organizer

  • Prof. C. Ancey, ENAC-LHE

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