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Memorias de investigación
Artículos en revistas:
An energy-dissipative remedy against carbuncle: Application to hypersonic flows around blunt bodies
Año:2016
Áreas de investigación
  • Ingenierías
Datos
Descripción
The carbuncle phenomenon is a critical numerical instability preventing the accurate simulation of hypersonic flows around blunted configurations. After reviewing the known remedies to handle numerically this instability (designed, all of them, for Finite Volume methods), we present and analyze in depth the only effective cure reported in literature for Residual Distribution schemes. The shock fix, which is formulated as a locally active artificial diffusive term, depends on a single controlling parameter ?s. Extensive testing of the fix in combination with the Residual Distribution technique allows for the determination of an optimal value for ?s, which can be related to a local Péclet-like number. After testing the performance of the fix in combination with the Residual Distribution technique it was originally designed for, the flexibility of the fix is demonstrated by coupling it with a cell-centered Finite Volume discretization: carbuncle instabilities are equally avoided in this case. Finally, a number of limitations identified in the first testing phase lead to the derivation of a more physically consistent, energy dissipative family of carbuncle fixes, whose improved capabilities are demonstrated.
Internacional
Si
JCR del ISI
Si
Título de la revista
Computers & Fluids
ISSN
0045-7930
Factor de impacto JCR
Información de impacto
Volumen
133
DOI
http://dx.doi.org/10.1016/j.compfluid.2016.03.028
Número de revista
Desde la página
43
Hasta la página
54
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jesus Garicano Mena (UPM)
  • Autor: Andrea Lani (Von Karman Institute for Fluid Dynamics)
  • Autor: Herman Deconinck (Von Karman Institute for Fluid Dynamics)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Métodos y Aplicaciones Numéricas a la Tecnología Aeroespacial
  • Departamento: Matemática Aplicada a la Ingeniería Aeroespacial
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