ID:
publications-1025
Type:
PEER_REVIEWED_ARTICLE
Year:
2015
Authors:
T. Dairay , M. Obligado , J. C. Vassilicos
Title:
Non-equilibrium scaling laws in axisymmetric turbulent wakes
Venue/Journal:
DOI:
10.1017/jfm.2015.493
Research type:
Uncategorized
Water System:
Natural Water Bodies
Technical Focus:
Abstract:
We present a combined direct numerical simulation and hot-wire anemometry study of an axisymmetric turbulent wake. The data lead to a revised theory of axisymmetric turbulent wakes which relies on the mean streamwise momentum and turbulent kinetic energy equations, self-similarity of the mean flow, turbulent kinetic energy, Reynolds shear stress and turbulent dissipation profiles, non-equilibrium dissipation scalings and an assumption of constant anisotropy. This theory is supported by the present data up to a distance of 100 times the wake generator’s size, which is as far as these data extend.
Link with Projects:
320560
Link with Tools:
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