Reynolds stress scaling in the near-wall region of wall-bounded flows

Alexander J. Smits; Marcus Hultmark; Myoungkyu Lee; Sergio Pirozzoli; Xiaohua Wu

doi:10.1017/jfm.2021.736

Reynolds stress scaling in the near-wall region of wall-bounded flows

Alexander J. Smits, Marcus Hultmark, Myoungkyu Lee, Sergio Pirozzoli, Xiaohua Wu

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

A new scaling is derived that yields a Reynolds-number-independent profile for all components of the Reynolds stress in the near-wall region of wall-bounded flows, including channel, pipe and boundary layer flows. The scaling demonstrates the important role played by the wall shear stress fluctuations and how the large eddies determine the Reynolds number dependence of the near-wall turbulence behaviour.

Original language	English (US)
Article number	A31
Journal	Journal of Fluid Mechanics
Volume	926
DOIs	https://doi.org/10.1017/jfm.2021.736
State	Published - Nov 10 2021

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Applied Mathematics

Keywords

boundary layer structure
pipe flow boundary layer
turbulent boundary layers

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10.1017/jfm.2021.736

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abstract = "A new scaling is derived that yields a Reynolds-number-independent profile for all components of the Reynolds stress in the near-wall region of wall-bounded flows, including channel, pipe and boundary layer flows. The scaling demonstrates the important role played by the wall shear stress fluctuations and how the large eddies determine the Reynolds number dependence of the near-wall turbulence behaviour.",

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AU - Smits, Alexander J.

AU - Hultmark, Marcus

AU - Lee, Myoungkyu

AU - Pirozzoli, Sergio

AU - Wu, Xiaohua

N1 - Publisher Copyright: © The Author(s), 2021. Published by Cambridge University Press.

PY - 2021/11/10

Y1 - 2021/11/10

N2 - A new scaling is derived that yields a Reynolds-number-independent profile for all components of the Reynolds stress in the near-wall region of wall-bounded flows, including channel, pipe and boundary layer flows. The scaling demonstrates the important role played by the wall shear stress fluctuations and how the large eddies determine the Reynolds number dependence of the near-wall turbulence behaviour.

AB - A new scaling is derived that yields a Reynolds-number-independent profile for all components of the Reynolds stress in the near-wall region of wall-bounded flows, including channel, pipe and boundary layer flows. The scaling demonstrates the important role played by the wall shear stress fluctuations and how the large eddies determine the Reynolds number dependence of the near-wall turbulence behaviour.

KW - boundary layer structure

KW - pipe flow boundary layer

KW - turbulent boundary layers

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JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

M1 - A31

ER -

Reynolds stress scaling in the near-wall region of wall-bounded flows

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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