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Memorias de investigación
Artículos en revistas:
A Boundary Integral SPH Formulation -Consistency and Applications to ISPH and WCSPH-
Año:2012
Áreas de investigación
  • Matemáticas,
  • Física,
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
One of the historical problems appearing in SPH formulations is the inconsistencies coming from the inappropriate implementation of boundary conditions. In this work, this problem has been investigated; instead of using typical methodologies such as extended domains with ghost or dummy particles where severe inconsistencies are found, we included the boundary terms that naturally appear in the formulation. First, we proved that in the 1D smoothed continuum formulation, the inclusion of boundary integrals allows for a consistent O(h) formulation close to the boundaries. Second, we showed that the corresponding discrete version converges to a certain solution when the discretization SPH parameters tend to zero. Typical tests with the first and second derivative operators confirm that this boundary condition implementation works consistently. The 2D Poisson problem, typically used in ISPH, was also studied, obtaining consistent results. For the sake of completeness, two practical applications, namely, the duct flow and a sloshing tank, were studied with the results showing a rather good agreement with former experiments and previous results.
Internacional
Si
JCR del ISI
Si
Título de la revista
Progress of Theoretical Physics
ISSN
0033-068X
Factor de impacto JCR
2,294
Información de impacto
Volumen
128
DOI
Número de revista
3
Desde la página
439
Hasta la página
463
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Fabricio Macia Lang (UPM)
  • Autor: Leo Miguel Gonzalez Gutierrez (UPM)
  • Autor: Jose Luis Cercos Pita (UPM)
  • Autor: Antonio Souto Iglesias (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • 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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