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

Journal Article · · Journal of Fluid Mechanics
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]
  1. Princeton Univ., NJ (United States)
  2. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  3. Sapienza University of Rome (Italy)
  4. Royal Military College of Canada, Kingston, ON (Canada)
+ Show Author Affiliations

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.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
1828019
Report Number(s):
SAND2021-9480J; 697615
Journal Information:
Journal of Fluid Mechanics, Journal Name: Journal of Fluid Mechanics Vol. 926; ISSN 0022-1120
Publisher:
Cambridge University PressCopyright Statement
Country of Publication:
United States
Language:
English

References (25)

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A multifractal model for the momentum transfer process in wall-bounded flows journal July 2017
Extreme-scale motions in turbulent plane Couette flows journal March 2018
Fully resolved measurements of turbulent boundary layer flows up to journal July 2018
Spectral analysis of the budget equation in turbulent channel flows at high Reynolds number journal December 2018
Reynolds number scaling of the peak turbulence intensity in wall flows journal December 2020
One-point statistics for turbulent pipe flow up to journal September 2021
On the fluctuating wall-shear stress in zero pressure-gradient turbulent boundary layer flows journal February 2011
One-point statistics for turbulent wall-bounded flows at Reynolds numbers up to δ + ≈ 2000 journal October 2013
Effect of the computational domain on direct simulations of turbulent channels up to Re τ = 4200 journal January 2014
On the validity of the quasi-steady-turbulence hypothesis in representing the effects of large scales on small scales in boundary layers journal April 2016
Transitional–turbulent spots and turbulent–turbulent spots in boundary layers journal June 2017
Predictive Model for Wall-Bounded Turbulent Flow journal July 2010

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42 ENGINEERING
Boundary Layers: Boundary layer structure
Boundary Layers: Pipe flow boundary layer
Turbulent Flows: Turbulent boundary layers