Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Consistency analysis of flow field extension models into ghost fluid regions for SPH solid body boundary condition implementations
Year:2013
Research Areas
  • Phisics,
  • Mechanical engineering
Information
Abstract
In the present paper, the consistency of continuous SPH approximations to the di erential operators appearing in the Navier-Stokes system is analyzed. In particular, emphasis is made on the consistency of such operators when evaluated close to the boundaries of the fluid domain and flow extension techniques are applied. The divergence of the velocity field, the pressure gradient and the velocity Laplacian, present in Navier-Stokes equations, are considered. The question of how the extension scheme used in each field, both velocity and pressure, may a ect the accuracy of the SPH approximation of di erential operators close to the boundaries is addressed. An answer to this question is given by means of consistency arguments based on analytical tools.
International
No
Congress
8th ERCOFTAC SPHERIC workshop on SPH applications
960
Place
Reviewers
Si
ISBN/ISSN
978-88-7617-019-5
Start Date
04/06/2013
End Date
06/06/2013
From page
1
To page
8
Proceedings of 8th ERCOFTAC SPHERIC workshop on SPH applications
Participants
  • Autor: Pablo Eleazar Merino Alonso (ETSIN)
  • Autor: Fabricio Macia Lang (UPM)
  • Autor: Antonio Souto Iglesias (UPM)
  • Autor: Andrea Colagrossi (CNR-INSEAN)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: CEHINAV (Canal de Ensayos Hidrodinámicos de la E.T.S.I. Navales)
  • Departamento: Ciencias Aplicadas a la Ingeniería Naval
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