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Memorias de investigación
Artículos en revistas:
A high-resolution code for turbulent boundary layers
Año:2009
Áreas de investigación
  • Mecánica de fluidos
Datos
Descripción
A new high-resolution code for the direct simulation of incompressible boundary layers over a flat plate is described. It can accommodate a wide range of pressure gradients, and general time-dependent boundary conditions such as incoming wakes or wall forcing. The consistency orders of the advective and pressure-correction steps are different, but it is shown that the overall resolution is controlled by the higher-order advection step. The for- mulation of boundary conditions to ensure global mass conservation in the presence of arbitrary forcing is carefully analyzed. Two validation boundary layers with and without a strong adverse pressure gradient are presented, with maximum Reynolds numbers Reh ¿¿ 2000. They agree well with the available experiments. Turbulent inflow conditions for the zero-pressure case are implemented by a recycling method, and it is shown that at least the initial 300 momentum thicknesses have to be discarded before the effect of the artificial inflow is forgotten. It is argued that this is not a defect of the method used to generate the inflow, but a property of the boundary layer.
Internacional
Si
JCR del ISI
Si
Título de la revista
JOURNAL OF COMPUTATIONAL PHYSICS
ISSN
0021-9991
Factor de impacto JCR
2,279
Información de impacto
Volumen
228
DOI
Número de revista
0
Desde la página
4218
Hasta la página
4231
Mes
ENERO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Javier Jimenez Sendin (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Mecánica de Fluidos Computacional
  • Departamento: Motopropulsión y Termofluidodinámica
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