Axisymmetric turbulent wakes with new nonequilibrium similarity scalings
Axisymmetric turbulent wakes with new nonequilibrium similarity scalings
The recently discovered nonequilibrium turbulence dissipation law implies the existence of axisymmetric turbulent wake regions where the mean flow velocity deficit decays as the inverse of the distance from the wake-generating body and the wake width grows as the square root of that distance. This behavior is different from any documented boundary-free turbulent shear flow to date. Its existence is confirmed in wind tunnel experiments of wakes generated by plates with irregular edges placed normal to an incoming free stream. The wake characteristics of irregular bodies such as buildings, bridges, mountains, trees, coral reefs, and wind turbines are critical in many areas of environmental engineering and fluid mechanics.
144503-[5pp]
Nedić, J.
ab95b549-2e66-493b-aae8-1d3c44b26225
Vassilicos, J.C.
e3e74602-557c-450b-aa9a-3d28a1721f1a
Ganapathisubramani, B.
5e69099f-2f39-4fdd-8a85-3ac906827052
2013
Nedić, J.
ab95b549-2e66-493b-aae8-1d3c44b26225
Vassilicos, J.C.
e3e74602-557c-450b-aa9a-3d28a1721f1a
Ganapathisubramani, B.
5e69099f-2f39-4fdd-8a85-3ac906827052
Nedić, J., Vassilicos, J.C. and Ganapathisubramani, B.
(2013)
Axisymmetric turbulent wakes with new nonequilibrium similarity scalings.
Physical Review Letters, 111 (14), .
(doi:10.1103/PhysRevLett.111.144503).
Abstract
The recently discovered nonequilibrium turbulence dissipation law implies the existence of axisymmetric turbulent wake regions where the mean flow velocity deficit decays as the inverse of the distance from the wake-generating body and the wake width grows as the square root of that distance. This behavior is different from any documented boundary-free turbulent shear flow to date. Its existence is confirmed in wind tunnel experiments of wakes generated by plates with irregular edges placed normal to an incoming free stream. The wake characteristics of irregular bodies such as buildings, bridges, mountains, trees, coral reefs, and wind turbines are critical in many areas of environmental engineering and fluid mechanics.
This record has no associated files available for download.
More information
Published date: 2013
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 359352
URI: http://eprints.soton.ac.uk/id/eprint/359352
PURE UUID: ea4290e4-7a7b-4627-9b07-bea186e52902
Catalogue record
Date deposited: 28 Oct 2013 16:00
Last modified: 15 Mar 2024 03:37
Export record
Altmetrics
Contributors
Author:
J. Nedić
Author:
J.C. Vassilicos
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
