Comparison of turbulent boundary layers and channels from direct numerical simulation

Jiménez Sendín, Javier ORCID: https://orcid.org/0000-0003-0755-843X, Hoyas, Sergio ORCID: https://orcid.org/0000-0002-8458-7288, Simens, Mark Phil and Mizuno, Yoshinori (2009). Comparison of turbulent boundary layers and channels from direct numerical simulation. En: "Sixth International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009", 22-24 June 2009, Seoul, Korea. pp. 289-294.

Descripción

Título: Comparison of turbulent boundary layers and channels from direct numerical simulation
Autor/es:
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Sixth International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009
Fechas del Evento: 22-24 June 2009
Lugar del Evento: Seoul, Korea
Título del Libro: Sixth International Symposium on Turbulence and Shear Flow Phenomena
Fecha: 1 Junio 2009
Materias:
ODS:
Escuela: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

A new simulation of the zero-pressure-gradient turbulent boundary layer is discussed, in the range Reθ = 620 − 2140. It is first shown that the initial several hundred momentum thicknesses have to be discarded due to contamination from the synthetic turbulent inflow, and this is traced to the long lifetimes of the largest eddies. Beyond the inflow region, the results agree well with previous simulations and with experiments, and are compared to those of turbulent channels in the same range of Reynolds numbers. It is found that the transverse velocities and the pressure fluctuations are stronger in boundary layers. The reason is traced to the extra production in the wake region, and, ultimately, to the irrotational intermittency in that part of the flow.

Proyectos asociados

Tipo
Código
Acrónimo
Responsable
Título
Gobierno de España
TRA2006-08226
Sin especificar
Sin especificar
Sin especificar
FP6
AST4-CT-2005-516008
Sin especificar
Sin especificar
Sin especificar
FP5
HPRN-CT-2002-0030
Sin especificar
Sin especificar
Sin especificar

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