Strong particle dispersion by weakly dissipative random internal waves

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Abstract

Simple stochastic models and direct nonlinear numerical simulations of three-dimensional internal waves are combined in order to understand the strong horizontal particle dispersion at second-order in wave amplitude that arises when small-amplitude internal waves are exposed to weak dissipation. This is contrasted with the well-known results for perfectly inviscid internal waves, in which such dispersion arises only at fourth-order in wave amplitude.

Original languageEnglish (US)
Pages (from-to)R4
JournalJournal of Fluid Mechanics
Volume719
DOIs
StatePublished - 2013

Keywords

  • Dispersion
  • Geological flows
  • Geophysical
  • Mixing
  • Waves in rotating fluids

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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