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Memorias de investigación
Communications at congresses:
Energy decomposition analysis in free-surface flows: road-map for the direct computation of wave breaking dissipation
Year:2014
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
A viscous free-surface flow energy decomposition analysis is conducted in the present paper. In the presence of a free surface, the viscous dissipation for a Newtonian liquid can be decomposed into two terms: an enstrophy component and a free-surface deformation component. Equations for such terms in the weakly compressible SPH (WCSPH) formalism are devised. They require the discretization of a volume and a surface integral, respectively. Applying energy conservation, a double-checking of the free surface term is developed and applied, confirming the quality of the surface integral SPH evaluation, even in the presence of moderately fragmented free surface. Application to a large amplitude standing wave with breaking is presented.
International
Si
Congress
9th SPHERIC International Workshop
960
Place
París, Francia
Reviewers
Si
ISBN/ISSN
88-7617-020-0
Start Date
03/06/2014
End Date
05/06/2014
From page
403
To page
410
Session 14 : Free-Surface Flow .
Participants
  • Autor: A. Colagrossi
  • Autor: B. Bouscasse
  • Autor: Antonio Souto Iglesias (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: CEHINAV (Canal de Ensayos Hidrodinámicos de la E.T.S.I. Navales)
  • Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
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