Air entrainment and degassing process in breaking waves (Abstract/Comunicazione in atti di convegno)

Type
Label
  • Air entrainment and degassing process in breaking waves (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • A. Iafrati (2009)
    Air entrainment and degassing process in breaking waves
    in 24th International Workshop on Water Waves and Floating Bodies, St. Petersburg, 19-22 Aprile, 2009
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Iafrati (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.iwwwfb.org/Abstracts/iwwwfb24/iwwwfb24_31.pdf (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Note
  • PuM (literal)
  • Comunicazione (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • INSEAN (literal)
Titolo
  • Air entrainment and degassing process in breaking waves (literal)
Abstract
  • The air entrainment and the degassing process in breaking waves is investigated. The ow generated by the breaking of free{surface waves of different initial steepnesses is simulated numerically, through a two- uids Navier-Stokes solver combined with a Level-Set technique for the interface capturing. The ow is assumed two-dimensional. The evolution of periodic wave trains of different initial steepness is considered. For large initial steepnesses the breaking is of the plunging type and leads to the entrappment of large air cavities, area of which is found to scale as the steepness to the power seven.The fragmentation process of the large air cavities is analysed and quantitative estimates of the amount of air entrapped by the breaking and of the degassing process are provided. (literal)
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