Shear effects in nonhomogeneous turbulence

F. Toschi; E. Leveque; G. Ruiz-chavarria

doi:10.1103/PhysRevLett.85.1436

Shear effects in nonhomogeneous turbulence

F. Toschi, E. Leveque, G. Ruiz-chavarria

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Abstract

Motivated by recent experimental and numerical results, a simple unifying picture of intermittency in turbulent shear flows is suggested. Integral structure functions (ISF), taking into account explicitly the shear intensity, are introduced on phenomenological grounds. ISF can exhibit a universal scaling behavior, independent of the shear intensity. This picture is in satisfactory agreement with both experimental and numerical data. Possible extension to convective turbulence and implication on closure conditions for large-eddy simulation of nonhomogeneous flows are briefly discussed.

Original language	Undefined
Pages (from-to)	1436-1439
Number of pages	4
Journal	Physical review letters
Volume	85
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.85.1436
Publication status	Published - 2000

Keywords

METIS-129616
IR-24815

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10.1103/PhysRevLett.85.1436

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Cite this

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AU - Ruiz-chavarria, G.

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AB - Motivated by recent experimental and numerical results, a simple unifying picture of intermittency in turbulent shear flows is suggested. Integral structure functions (ISF), taking into account explicitly the shear intensity, are introduced on phenomenological grounds. ISF can exhibit a universal scaling behavior, independent of the shear intensity. This picture is in satisfactory agreement with both experimental and numerical data. Possible extension to convective turbulence and implication on closure conditions for large-eddy simulation of nonhomogeneous flows are briefly discussed.

KW - METIS-129616

KW - IR-24815

U2 - 10.1103/PhysRevLett.85.1436

DO - 10.1103/PhysRevLett.85.1436

M3 - Article

VL - 85

SP - 1436

EP - 1439

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

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