15th European Turbulence Conference 2015
August 25-28th, 2015, Delft, The Netherlands
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Turbulent wakes of plates with non-equilibrium similarity scalings


Go-down etc15 Tracking Number 75

Presentation:
Session: Jets and Wakes 1
Room: Room E
Session start: 10:30 Tue 25 Aug 2015

Martin Obligado   m.obligado@imperial.ac.uk
Affifliation: Imperial College London

John Christos Vassilicos   j.c.vassilicos@imperial.ac.uk
Affifliation: Imperial College London


Topics: - Jets and wakes

Abstract:

We have conducted hot wire anemometry measurements of six different axisymmetric turbulent wakes which demonstrate the existence in all these wakes of non-equilibrium mean flow profile scalings and of the underlying self-preservation and non-equilibrium dissipation scalings. These mean flow profile scalings are different from those of all documented canonical boundary-free turbulent shear flows to date, all of which have been established for very far downstream regions.